- Qingdao Laigang Steel Structure Co., Ltd.
- 全国主营:Steel structure
- Qingdao Songmao Industrial Trade Co., Ltd.
- 全国主营:Rubber mould, Rubber machinery, Rubber products, Precise castings
- Ocean Petroleum Engineering Co., Ltd.
- 全国主营:Steel structure parts, Seabed base plate
- Tianjin Daming Motor Company Welfare Metal Ware Factory
- 全国主营:Wind cover, Stamped parts
- Tianjin Ruixin Office Furniture Factory
- 全国主营:Furniture, Dossier supplies
- Tianjin Jinghai Xinli Hardware Processing Factory
- 全国主营:Expansion bolt
- Tianjin Jinghai Qiangli Steel Wire Rope Factory
- 全国主营:Steel wire rope
- Tianjin Futong Hydraulic Machinery Accessory Co., Ltd.
- 全国主营:Hydraulic connecting parts
- Tianjin Tianmai Metal Ware Co., Ltd.
- 全国主营:Gas burner
- Tianjin Baoyi Industrial Products Co., Ltd.
- 全国主营:Gas burner, Casting
- Deqing Yisong Machine Manufacturing Co., Ltd.
- 全国主营:Melamine-formaldehyde fibre glass compression molding material, Phenolic aldehyde fibre glass compression molding material, Pig iron casting.
- Tianjin Hangu Datian Barrel Factory
- 全国主营:Barrel
- Tianjin Jinghai Hongda Screw Factory
- 全国主营:Screw
- Kaiping Oubao Hardware Co., Ltd.
- 全国主营:Zinc alloy sanitary product
- Tengzhou Jianbo Communication Equipment Co., Ltd.
- 全国主营:Communication equipment
- Kaiping Chuangyu Shed Frame Equipment Co., Ltd.
- 全国主营:Shed frame equipment
- Beijing Jinxiu'en Technology Development Co., Ltd.
- 全国主营:Automatic recognition equipment.
- Wenling Investment Casting Co., Ltd.
- 全国主营:Castings
- Beijing Weikai Stainless Steel Co., Ltd.
- 全国主营:Stainless steel decoration