- Zhongshan Zongsen Hardware Products Co., Ltd.
- 全国主营:Hardware punch components.
- Shanghai Zihai Electric-mechanical Equipment Co., Ltd.
- 全国主营:Straight guide rail, Straight axletree, Straight optical axis.
- Weifang Taiyu Standard Part Factory
- 全国主营:Hardware standard part
- Weifang Weicheng Huate Shot Factory
- 全国主营:Cast iron ball, Cast steel shot
- Weifang Zhongwang Hardware Manufacturing Co., Ltd.
- 全国主营:Hardware
- Weifang Dongzheng Nc Equipment Factory
- 全国主营:NC machine tool
- Tianjin Hongbo Iron Processing Factory
- 全国主营:Iron guardrails and doors
- Foshan Nanhai Yanbu Lian'an Tianbao Hardware Factory
- 全国主营:Hardware pressing
- Wenling Helin Steel Part Factory
- 全国主营:Metal sheet
- Tianjin Guotai Static Spray-coated Factory
- 全国主营:Spray-coating hardware product
- Sichuan Wenjiang Gongping Metal Plastic Package Factory
- 全国主营:Metal, Plastic package product.
- Shengzhou Lide Spring Factory
- 全国主营:Spring
- Shenyang Xinbai Lida Roller Door Factory
- 全国主营:Fireproofing roller blind, Door window.
- Shenyang Xiangquanli Machine Seal Element Factory
- 全国主营:Sealing products
- Tianjin Guoxing Electric Door Factory
- 全国主营:Electric door
- Tianjin Changcheng Spring Factory
- 全国主营:Spring
- Tianjin Chenghao Mould Factory
- 全国主营:Machinery parts, Mould
- Shenzhen Rongshida Precision Hardware Machine Factory
- 全国主营:Machinery
- Tianjin Jinjing Electrical Appliance Factory
- 全国主营:Low voltage complete set switch gear