- Shanghai General Detecting Technology Research Institute
- 全国主营:Gas recovery air charging system, Halogen leakage indicator, Vacuum gauge.
- Xiehong Machinery & Hardware Co., Ltd.
- 全国主营:Hardware product
- Shenzhen Shunyi Hardware Screw Factory
- 全国主营:Screw
- Wendeng Beijiao Xinghua Spring Factory
- 全国主营:Spring
- Qingdao Lijun Packing Product Co., Ltd.
- 全国主营:Package belt, Parcelling buckle, Cardboard box, Adhesive tape
- Longkou Haidai Stamping Factory
- 全国主营:Press part
- Jiaonan Lingshanwei Door And Window Processing Factory
- 全国主营:Metal doors, Metal window, Aluminium alloy door, Aluminium alloy window
- Yantai Thermal Galvanized Iron Tower Co., Ltd.
- 全国主营:Metal structure
- Yantai Muping Tianyu Industry And Trade Co., Ltd.
- 全国主营:Lubricating oil, Plastic products, Hardware & electrical equipment, Chemical products, Fitting, Valves, Building material
- Tengzhou Dongtai Machine Tool Works
- 全国主营:Chains
- Xinxiang Beifang Hongyun Burglarproof Door Door And Window Factory
- 全国主营:Burglarproof door, Burglarproof window
- Wuxi Meihua Plate Co., Ltd.
- 全国主营:Floor template.
- Beijing Fuli Chuangda Technology Development Co., Ltd.
- 全国主营:Liquid-crystal display hidden system
- Jining Forging Center
- 全国主营:Forged piece
- Zibo Zihao Industrial Co., Ltd.
- 全国主营:Automobile flat spring, Laminated spring for agricultural vehicle, Livestock machinery, Building material, Steels, Cement, Chemical products, Water pump, Hardware, Machinery electrical appliance, Timb
- Zibo Chenghuan Electrical Appliance Co., Ltd.
- 全国主营:High-low voltage switch cabinet, Box transformer substation, Cable bridge joint, Switch box
- Zibo Huantai Xinghua Special Steel Co., Ltd.
- 全国主营:Cast, Building material, Machinery fittings