- Shanghai Kairi Electromechanical Equipment Manufacturing Co., Ltd.
- 全国主营:Magnetic fluid vacuum seal bearing, Pump bearing
- Foshan Lanshi Shencun Renhe Machinery Works
- 全国主营:Fasteners, Bend pipe fittings
- Dongguan Longchang Spring & Hardware Fittings Factory
- 全国主营:Electronic spring
- Dongguan Changan Jinxia Zhixiang Hardware And Screw Manufactory
- 全国主营:Screw, Screw thread, Nut.
- Foshan Nanyong Metal Forging Works
- 全国主营:Machinery forging
- Guangzhou No.7 Standard Part Factory
- 全国主营:Stardard part, Fasteners
- Guangzhou Yuexiu Baiyun Metal Standard Parts Factory
- 全国主营:Fasteners
- Guangdong Yifengsheng Casting Co., Ltd.
- 全国主营:Casting
- Foshan Shunde Chencun Heba Hardware Factory
- 全国主营:Castings
- Jiangmen Xinhui Chengnan Foundry Co., Ltd.
- 全国主营:Iron castings
- Foshan Donghua Foundry Industry Co., Ltd.
- 全国主营:Pig iron casting
- Shenzhen Hengchang Hardware And Spring Factory
- 全国主营:Iron spring
- Zhongshan Sanxiang Junda Metal Screw Factory
- 全国主营:Screw
- Zhongshan Dongqu Light Industrial Machinery Works
- 全国主营:Metal sundries, Iron door and window, Iron brake, Metal furniture
- Dongguan Fenggang Shaling Lianxing Hardware Factory
- 全国主营:Pot nail
- Jining Bote Precision Screw Making Co., Ltd.
- 全国主营:Machine tool fittings, and Rolling functional unit.
- Fujian Yatong New material technology Co., Ltd.
- 全国主营:Pipe fittings
- Beijing Zhongtaitong Science And Technology Development Co., Ltd.
- 全国主营:Security checking equipment and explosive ordnance disposal equipment