Table of Contents Global Smart Letter Boxes Market Research Report 2020, Forecast to 2025 1 Market Overview 1.1 Smart Letter Boxes Definition 1.1.1 Analysis of Macroeconomic Indicators 1.1.2 Years Considered 1.2 Smart Letter Boxes Segment by Type 1.2.1 Horizontal 1.2.2 Tandem 1.3 Market Analysis by Application 1.3.1 Community 1.3.2 School 1.3.3 Commercial Building 1.3.4 Other 1.4 Overview of Global Smart Letter Boxes Market 1.4.1 Global Smart Letter Boxes Revenue (2015-2025) 1.4.2 Global Smart Letter Boxes Production and Capacity (2015-2025) 1.4.3 North America Smart Letter Boxes Status and Prospect (2015-2025) 1.4.4 Europe Smart Letter Boxes Status and Prospect (2015-2025) 1.4.5 Japan Smart Letter Boxes Status and Prospect (2014-2025) 1.4.6 China Smart Letter Boxes Status and Prospect (2015-2025) 1.5 Market Dynamics 1.5.1 Market Opportunities 1.5.2 Market Risk 1.5.3 Market Driving Force 1.5.4 Porter's Five Forces Analysis 1.5.5 SWOT Analysis 1.6 Coronavirus Disease 2019 (Covid-19): Smart Letter Boxes Industry Impact 1.6.1 How the Covid-19 is Affecting the Smart Letter Boxes Industry 1.6.2 Smart Letter Boxes Business Impact Assessment - Covid-19 1.6.3 Market Trends and Smart Letter Boxes Potential Opportunities in the COVID-19 Landscape 1.6.4 Measures / Proposal against Covid-19 2 Global Smart Letter Boxes Market Competition by Manufacturer 2.1 Global Smart Letter Boxes Sales and Market Share by Manufacturer (2018-2020) 2.2 Global Smart Letter Boxes Revenue and Market Share by Manufacturer (2018-2020) 2.3 Global Smart Letter Boxes Industry Concentration Ratio (CR5 and HHI) 2.4 Top 5 Smart Letter Boxes Manufacturer Market Share 2.5 Top 10 Smart Letter Boxes Manufacturer Market Share 2.6 Date of Key Manufacturers Enter into Smart Letter Boxes Market 2.7 Key Manufacturers Smart Letter Boxes Product Offered 2.8 Mergers & Acquisitions Planning 3 Analysis of Smart Letter Boxes Industry Key Manufacturers 3.1 Tuoyou (Shanghai) Intelligent Technology Co., Ltd. 3.1.1 Company Details 3.1.2 Product Information 3.1.3 Tuoyou (Shanghai) Intelligent Technology Co., Ltd. Smart Letter Boxes Production, Price, Cost, Gross Margin, and Revenue (2018-2020) 3.1.4 Main Business Overview 3.1.5 Tuoyou (Shanghai) Intelligent Technology Co., Ltd. News 3.2 Shenzhen Zhilai Technology Co., Ltd. 3.2.1 Company Details 3.2.2 Product Information 3.2.3 Shenzhen Zhilai Technology Co., Ltd. Smart Letter Boxes Production, Price, Cost, Gross Margin, and Revenue (2018-2020) 3.2.4 Main Business Overview 3.2.5 Shenzhen Zhilai Technology Co., Ltd. News 3.3 Chengdu Jianlong Technology Co., Ltd. 3.3.1 Company Details 3.3.2 Product Information 3.3.3 Chengdu Jianlong Technology Co., Ltd. Smart Letter Boxes Production, Price, Cost, Gross Margin, and Revenue (2018-2020) 3.3.4 Main Business Overview 3.3.5 Chengdu Jianlong Technology Co., Ltd. News 3.4 Shenzhen Suiyibao Intelligent Technology Co., Ltd. 3.4.1 Company Details 3.4.2 Product Information 3.4.3 Shenzhen Suiyibao Intelligent Technology Co., Ltd. Smart Letter Boxes Production, Price, Cost, Gross Margin, and Revenue (2018-2020) 3.4.4 Main Business Overview 3.4.5 Shenzhen Suiyibao Intelligent Technology Co., Ltd. News 3.5 Shenzhen Zhenyao Technology Co., Ltd. 3.5.1 Company Details 3.5.2 Product Information 3.5.3 Shenzhen Zhenyao Technology Co., Ltd. Smart Letter Boxes Production, Price, Cost, Gross Margin, and Revenue (2018-2020) 3.5.4 Main Business Overview 3.5.5 Shenzhen Zhenyao Technology Co., Ltd. News 3.6 Zhongke Fuchuang (Beijing) Technology Co., Ltd. 3.6.1 Company Details 3.6.2 Product Information 3.6.3 Zhongke Fuchuang (Beijing) Technology Co., Ltd. Smart Letter Boxes Production, Price, Cost, Gross Margin, and Revenue (2018-2020) 3.6.4 Main Business Overview 3.6.5 Zhongke Fuchuang (Beijing) Technology Co., Ltd. News 3.7 Taikang Zhijian 3.7.1 Company Details 3.7.2 Product Information 3.7.3 Taikang Zhijian Smart Letter Boxes Production, Price, Cost, Gross Margin, and Revenue (2018-2020) 3.7.4 Main Business Overview 3.7.5 Taikang Zhijian News 3.8 Xiamen Hanlingda Intelligent Technology Co., Ltd. 3.8.1 Company Details 3.8.2 Product Information 3.8.3 Xiamen Hanlingda Intelligent Technology Co., Ltd. Smart Letter Boxes Production, Price, Cost, Gross Margin, and Revenue (2018-2020) 3.8.4 Main Business Overview 3.8.5 Xiamen Hanlingda Intelligent Technology Co., Ltd. News 3.9 Shenzhen Hengxi Xinyan Hardware Products Co., Ltd. 3.9.1 Company Details 3.9.2 Product Information 3.9.3 Shenzhen Hengxi Xinyan Hardware Products Co., Ltd. Smart Letter Boxes Production, Price, Cost, Gross Margin, and Revenue (2018-2020) 3.9.4 Main Business Overview 3.9.5 Shenzhen Hengxi Xinyan Hardware Products Co., Ltd. News 3.10 Huayin Brand 3.10.1 Company Details 3.10.2 Product Information 3.10.3 Huayin Brand Smart Letter Boxes Production, Price, Cost, Gross Margin, and Revenue (2018-2020) 3.10.4 Main Business Overview 3.10.5 Huayin Brand News 3.11 Wuyi Xinrui Metal Products Co., Ltd. 3.11.1 Company Details 3.11.2 Product Information 3.11.3 Wuyi Xinrui Metal Products Co., Ltd. Smart Letter Boxes Production, Price, Cost, Gross Margin, and Revenue (2018-2020) 3.11.4 Main Business Overview 3.11.5 Wuyi Xinrui Metal Products Co., Ltd. News 3.12 Jinan Jiahe Stainless Steel Products Co., Ltd. 3.12.1 Company Details 3.12.2 Product Information 3.12.3 Jinan Jiahe Stainless Steel Products Co., Ltd. Smart Letter Boxes Production, Price, Cost, Gross Margin, and Revenue (2018-2020) 3.12.4 Main Business Overview 3.12.5 Jinan Jiahe Stainless Steel Products Co., Ltd. News 3.13 Shanghai Yigou Intelligent Technology Co., Ltd. 3.13.1 Company Details 3.13.2 Product Information 3.13.3 Shanghai Yigou Intelligent Technology Co., Ltd. Smart Letter Boxes Production, Price, Cost, Gross Margin, and Revenue (2018-2020) 3.13.4 Main Business Overview 3.13.5 Shanghai Yigou Intelligent Technology Co., Ltd. News 4 Global Smart Letter Boxes Market Size Categorized by Regions (2015-2020) 4.1 Global Smart Letter Boxes Sales Market Share by Region 4.2 Global Smart Letter Boxes Revenue Market Share by Region (2015-2019) 4.3 Global Smart Letter Boxes Sales, Revenue, Price and Gross Margin (2015-2020) 4.4 North America Smart Letter Boxes Market Size Detail 4.4.1 North America Smart Letter Boxes Sales Growth Rate (2015-2020) 4.4.2 North America Smart Letter Boxes Sales, Revenue, Price and Gross Margin (2015-2020) 4.5 Europe Smart Letter Boxes Market Size Detail 4.5.1 Europe Smart Letter Boxes Sales Growth Rate (2015-2020) 4.5.2 Europe Smart Letter Boxes Sales, Revenue, Price and Gross Margin (2015-2020) 4.6 Japan Smart Letter Boxes Market Size Detail 4.6.1 Japan Smart Letter Boxes Sales Growth Rate (2015-2020) 4.6.2 Japan Smart Letter Boxes Sales, Revenue, Price and Gross Margin (2015-2020) 4.7 China Smart Letter Boxes Market Size Detail 4.7.1 China Smart Letter Boxes Sales Growth Rate (2015-2020) 4.7.2 China Smart Letter Boxes Sales, Revenue, Price and Gross Margin (2015-2020) 5 Global Smart Letter Boxes Market Segment by Type 5.1 Global Smart Letter Boxes Revenue, Sales and Market Share by Type (2015-2020) 5.1.1 Global Smart Letter Boxes Sales and Market Share by Type (2015-2020) 5.1.2 Global Smart Letter Boxes Revenue and Market Share by Type (2015-2020) 5.2 Horizontal Sales Growth Rate and Price 5.2.1 Global Horizontal Sales Growth Rate (2015-2020) 5.2.2 Global Horizontal Price (2015-2020) 5.3 Tandem Sales Growth Rate and Price 5.3.1 Global Tandem Sales Growth Rate (2015-2020) 5.3.2 Global Tandem Price (2015-2020) 6 Global Smart Letter Boxes Market Segment by Application 6.1 Global Smart Letter Boxes Sales Market Share by Application (2015-2020) 6.2 Community Sales Growth Rate (2015-2020) 6.3 School Sales Growth Rate (2015-2020) 6.4 Commercial Building Sales Growth Rate (2015-2020) 6.5 Other Sales Growth Rate (2015-2020) 7 Smart Letter Boxes Related Market Analysis 7.1 Upstream Analysis 7.1.1 Macro Analysis of Upstream Markets 7.1.2 Key Players in Upstream Markets 7.1.3 Upstream Market Trend Analysis 7.1.4 Smart Letter Boxes Manufacturing Cost Analysis 7.2 Downstream Market Analysis 7.2.1 Macro Analysis of Down Markets 7.2.2 Key Players in Down Markets 7.2.3 Downstream Market Trend Analysis 7.2.4 Sales Channel, Distributors, Traders and Dealers 8 Global Smart Letter Boxes Market Forecast 8.1 Global Smart Letter Boxes Sales, Revenue Forecast 8.1.1 Global Smart Letter Boxes Sales Growth Rate Forecast (2020-2025) 8.1.2 Global Smart Letter Boxes Revenue and Growth Rate Forecast (2020-2025) 8.1.3 Global Smart Letter Boxes Price and Trend Forecast (2020-2025) 8.2 Global Smart Letter Boxes Sales Forecast by Region (2020-2025) 8.2.1 North America Smart Letter Boxes Sales, Revenue Forecast (2020-2025) 8.2.2 Europe Smart Letter Boxes Sales, Revenue Forecast (2020-2025) 8.2.3 Japan Smart Letter Boxes Production, Revenue Forecast (2020-2025) 8.2.4 China Smart Letter Boxes Production, Revenue Forecast (2020-2025) 9 Research Findings and Conclusion 10 Appendix

List of Tables and Figures Figure Smart Letter Boxes Picture Table Global Smart Letter Boxes Sales by Type Figure Global Sales Market Share of Smart Letter Boxes by Product Type in 2019 Table Breakdown of Smart Letter Boxes by Company Type (Tier 1, Tier 2 and Tier 3) Figure Smart Letter Boxes Market Share by Company Type (Tier 1, Tier 2 and Tier 3) Figure Horizontal Picture Figure Tandem Picture Table Global Smart Letter Boxes Sales by Application Figure Global Smart Letter Boxes Sales Market Share by Application in 2019 Figure Community Picture Figure School Picture Figure Commercial Building Picture Figure Other Picture Table Smart Letter Boxes Market Size Comparison by Region (2019-2025) (K Units) & (Million US$) Figure Global Smart Letter Boxes Revenue (Million US$) (2015-2025) Figure Global Smart Letter Boxes Production (K Units) (2015-2025) Figure North America Smart Letter Boxes Revenue (Million US$) Growth Rate (2015-2025) Figure Europe Smart Letter Boxes Revenue (Million US$) Growth Rate (2015-2025) Figure Japan Smart Letter Boxes Revenue (Million US$) Growth Rate (2014-2025) Figure China Smart Letter Boxes Revenue (Million US$) Growth Rate (2015-2025) Table Market Opportunities in Next Few Years Table Market Risks Analysis Table Market Drivers Figure Porter's Five Forces Analysis Table SWOT Analysis Table Global Smart Letter Boxes Sales by Manufacturer (2018-2020) Figure Global Smart Letter Boxes Sales Market Share by Manufacturer in 2019 Table Global Smart Letter Boxes Revenue by Manufacturer (2018-2020) Figure Global Smart Letter Boxes Revenue Market Share by Manufacturer in 2019 Table Global Smart Letter Boxes Manufacturers Market Concentration Ratio (CR5 and HHI) Figure Top 5 Smart Letter Boxes Manufacturer (Revenue) Market Share in 2019 Figure Top 10 Smart Letter Boxes Manufacturer (Revenue) Market Share in 2019 Table Date of Key Manufacturers Enter into Smart Letter Boxes Market Table Key Manufacturers Smart Letter Boxes Product Type Table Mergers & Acquisitions Planning Table Tuoyou (Shanghai) Intelligent Technology Co., Ltd. Company Profile Figure Smart Letter Boxes Product Picture and Specifications of Tuoyou (Shanghai) Intelligent Technology Co., Ltd. Table Smart Letter Boxes Production, Price, Revenue and Gross Margin of 2018-2020 Figure Tuoyou (Shanghai) Intelligent Technology Co., Ltd. Smart Letter Boxes Market Share (2018-2020) Table Tuoyou (Shanghai) Intelligent Technology Co., Ltd. Main Business Table Tuoyou (Shanghai) Intelligent Technology Co., Ltd. Recent Development Table Shenzhen Zhilai Technology Co., Ltd. Company Profile Figure Smart Letter Boxes Product Picture and Specifications of Shenzhen Zhilai Technology Co., Ltd. Table Smart Letter Boxes Production, Price, Revenue and Gross Margin of 2018-2020 Figure Shenzhen Zhilai Technology Co., Ltd. Smart Letter Boxes Market Share (2018-2020) Table Shenzhen Zhilai Technology Co., Ltd. Main Business Table Shenzhen Zhilai Technology Co., Ltd. Recent Development Table Chengdu Jianlong Technology Co., Ltd. Company Profile Figure Smart Letter Boxes Product Picture and Specifications of Chengdu Jianlong Technology Co., Ltd. Table Smart Letter Boxes Production, Price, Revenue and Gross Margin of 2018-2020 Figure Chengdu Jianlong Technology Co., Ltd. Smart Letter Boxes Market Share (2018-2020) Table Chengdu Jianlong Technology Co., Ltd. Main Business Table Chengdu Jianlong Technology Co., Ltd. Recent Development Table Shenzhen Suiyibao Intelligent Technology Co., Ltd. Company Profile Figure Smart Letter Boxes Product Picture and Specifications of Shenzhen Suiyibao Intelligent Technology Co., Ltd. Table Smart Letter Boxes Production, Price, Revenue and Gross Margin of 2018-2020 Figure Shenzhen Suiyibao Intelligent Technology Co., Ltd. Smart Letter Boxes Market Share (2018-2020) Table Shenzhen Suiyibao Intelligent Technology Co., Ltd. Main Business Table Shenzhen Suiyibao Intelligent Technology Co., Ltd. Recent Development Table Shenzhen Zhenyao Technology Co., Ltd. Company Profile Figure Smart Letter Boxes Product Picture and Specifications of Shenzhen Zhenyao Technology Co., Ltd. Table Smart Letter Boxes Production, Price, Revenue and Gross Margin of 2018-2020 Figure Shenzhen Zhenyao Technology Co., Ltd. Smart Letter Boxes Market Share (2018-2020) Table Shenzhen Zhenyao Technology Co., Ltd. Main Business Table Shenzhen Zhenyao Technology Co., Ltd. Recent Development Table Zhongke Fuchuang (Beijing) Technology Co., Ltd. Company Profile Figure Smart Letter Boxes Product Picture and Specifications of Zhongke Fuchuang (Beijing) Technology Co., Ltd. Table Smart Letter Boxes Production, Price, Revenue and Gross Margin of 2018-2020 Figure Zhongke Fuchuang (Beijing) Technology Co., Ltd. Smart Letter Boxes Market Share (2018-2020) Table Zhongke Fuchuang (Beijing) Technology Co., Ltd. Main Business Table Zhongke Fuchuang (Beijing) Technology Co., Ltd. Recent Development Table Taikang Zhijian Company Profile Figure Smart Letter Boxes Product Picture and Specifications of Taikang Zhijian Table Smart Letter Boxes Production, Price, Revenue and Gross Margin of 2018-2020 Figure Taikang Zhijian Smart Letter Boxes Market Share (2018-2020) Table Taikang Zhijian Main Business Table Taikang Zhijian Recent Development Table Xiamen Hanlingda Intelligent Technology Co., Ltd. Company Profile Figure Smart Letter Boxes Product Picture and Specifications of Xiamen Hanlingda Intelligent Technology Co., Ltd. Table Smart Letter Boxes Production, Price, Revenue and Gross Margin of 2018-2020 Figure Xiamen Hanlingda Intelligent Technology Co., Ltd. Smart Letter Boxes Market Share (2018-2020) Table Xiamen Hanlingda Intelligent Technology Co., Ltd. Main Business Table Xiamen Hanlingda Intelligent Technology Co., Ltd. Recent Development Table Shenzhen Hengxi Xinyan Hardware Products Co., Ltd. Company Profile Figure Smart Letter Boxes Product Picture and Specifications of Shenzhen Hengxi Xinyan Hardware Products Co., Ltd. Table Smart Letter Boxes Production, Price, Revenue and Gross Margin of 2018-2020 Figure Shenzhen Hengxi Xinyan Hardware Products Co., Ltd. Smart Letter Boxes Market Share (2018-2020) Table Shenzhen Hengxi Xinyan Hardware Products Co., Ltd. Main Business Table Shenzhen Hengxi Xinyan Hardware Products Co., Ltd. Recent Development Table Huayin Brand Company Profile Figure Smart Letter Boxes Product Picture and Specifications of Huayin Brand Table Smart Letter Boxes Production, Price, Revenue and Gross Margin of 2018-2020 Figure Huayin Brand Smart Letter Boxes Market Share (2018-2020) Table Huayin Brand Main Business Table Huayin Brand Recent Development Table Wuyi Xinrui Metal Products Co., Ltd. Company Profile Figure Smart Letter Boxes Product Picture and Specifications of Wuyi Xinrui Metal Products Co., Ltd. Table Smart Letter Boxes Production, Price, Revenue and Gross Margin of 2018-2020 Figure Wuyi Xinrui Metal Products Co., Ltd. Smart Letter Boxes Market Share (2018-2020) Table Wuyi Xinrui Metal Products Co., Ltd. Main Business Table Wuyi Xinrui Metal Products Co., Ltd. Recent Development Table Jinan Jiahe Stainless Steel Products Co., Ltd. Company Profile Figure Smart Letter Boxes Product Picture and Specifications of Jinan Jiahe Stainless Steel Products Co., Ltd. Table Smart Letter Boxes Production, Price, Revenue and Gross Margin of 2018-2020 Figure Jinan Jiahe Stainless Steel Products Co., Ltd. Smart Letter Boxes Market Share (2018-2020) Table Jinan Jiahe Stainless Steel Products Co., Ltd. Main Business Table Jinan Jiahe Stainless Steel Products Co., Ltd. Recent Development Table Shanghai Yigou Intelligent Technology Co., Ltd. Company Profile Figure Smart Letter Boxes Product Picture and Specifications of Shanghai Yigou Intelligent Technology Co., Ltd. Table Smart Letter Boxes Production, Price, Revenue and Gross Margin of 2018-2020 Figure Shanghai Yigou Intelligent Technology Co., Ltd. Smart Letter Boxes Market Share (2018-2020) Table Shanghai Yigou Intelligent Technology Co., Ltd. Main Business Table Shanghai Yigou Intelligent Technology Co., Ltd. Recent Development Table Global Smart Letter Boxes Sales (K Units) by Region (2015-2020) Table Global Smart Letter Boxes Sales Market Share by Region (2015-2019) Figure Global Smart Letter Boxes Sales Market Share by Region (2015-2019) Figure Global Smart Letter Boxes Sales Market Share by Region in 2018 Table Global Smart Letter Boxes Revenue (Million US$) by Region (2015-2020) Table Global Smart Letter Boxes Revenue Market Share by Region (2015-2020) Figure Global Smart Letter Boxes Revenue Market Share by Region (2015-2020) Figure Global Smart Letter Boxes Revenue Market Share by Region in 2019 Table Global Smart Letter Boxes Sales (K Units), Revenue (Million US$), Price (USD/Unit) and Gross Margin (2015-2020) Figure North America Smart Letter Boxes Sales (K Units) Growth Rate (2015-2020) Figure Europe Smart Letter Boxes Sales (K Units) Growth Rate (2015-2020) Table Europe Smart Letter Boxes Sales (K Units), Revenue (Million US$), Price (USD/Unit) and Gross Margin (2015-2020) Figure Japan Smart Letter Boxes Sales (K Units) Growth Rate (2015-2020) Table Japan Smart Letter Boxes Sales (K Units), Revenue (Million US$), Price (USD/Unit) and Gross Margin (2015-2020) Figure China Smart Letter Boxes Sales (K Units) Growth Rate (2015-2020) Table China Smart Letter Boxes Sales (K Units), Revenue (Million US$), Price (USD/Unit) and Gross Margin (2015-2020) Table Global Smart Letter Boxes Sales by Type (2015-2020) Table Global Smart Letter Boxes Sales Market Share by Type (2015-2020) Figure Global Smart Letter Boxes Sales Market Share by Type in 2019 Table Global Smart Letter Boxes Revenue by Type (2015-2020) Table Global Smart Letter Boxes Revenue Market Share by Type (2015-2020) Figure Global Smart Letter Boxes Revenue Market Share by Type in 2019 Figure Global Horizontal Sales Growth Rate (2015-2025) Figure Global Horizontal Price (2015-2020) Figure Global Tandem Sales Growth Rate (2015-2025) Figure Global Tandem Price (2015-2020) Table Global Smart Letter Boxes Sales Market Share by Application (2015-2020) Figure Global Smart Letter Boxes Sales Market Share by Application in 2019 Figure Global Community Sales Growth Rate (2015-2025) Figure Global School Sales Growth Rate (2015-2025) Figure Global Commercial Building Sales Growth Rate (2015-2025) Figure Global Other Sales Growth Rate (2015-2025) Table Key Players of Upstream Markets Table Key Raw Materials Figure Price Trend of Key Raw Materials Table Key Suppliers of Raw Materials Figure Manufacturing Cost Structure of Smart Letter Boxes Table Key Players of Downstream Markets Figure Sales Channel Figure Global Smart Letter Boxes Production (K Units) Growth Rate Forecast (2020-2025) Figure Global Smart Letter Boxes Revenue (Million US$) Growth Rate Forecast (2020-2025) Figure Global Smart Letter Boxes Price and Trend Forecast (2020-2025) Table Global Smart Letter Boxes Sales (K Units) Forecast by Region (2020-2025) Figure Global Smart Letter Boxes Production Market Share Forecast by Region (2020-2025) Figure North America Smart Letter Boxes Sales (K Units) Growth Rate Forecast (2020-2025) Figure North America Smart Letter Boxes Revenue (Million US$) Growth Rate Forecast (2020-2025) Figure Europe Smart Letter Boxes Sales (K Units) Growth Rate Forecast (2020-2025) Figure Europe Smart Letter Boxes Revenue (Million US$) Growth Rate Forecast (2020-2025) Figure Japan Smart Letter Boxes Production (K Units) Growth Rate Forecast (2020-2025) Figure Japan Smart Letter Boxes Revenue (Million US$) Growth Rate Forecast (2020-2025) Figure China Smart Letter Boxes Production (K Units) Growth Rate Forecast (2020-2025) Figure China Smart Letter Boxes Revenue (Million US$) Growth Rate Forecast (2020-2025) Figure Methodology/Research Approach Figure Market Size Estimation Figure Author List

Tuoyou (Shanghai) Intelligent Technology Co., Ltd. Shenzhen Zhilai Technology Co., Ltd. Chengdu Jianlong Technology Co., Ltd. Shenzhen Suiyibao Intelligent Technology Co., Ltd. Shenzhen Zhenyao Technology Co., Ltd. Zhongke Fuchuang (Beijing) Technology Co., Ltd. Taikang Zhijian Xiamen Hanlingda Intelligent Technology Co., Ltd. Shenzhen Hengxi Xinyan Hardware Products Co., Ltd. Huayin Brand Wuyi Xinrui Metal Products Co., Ltd.