- Tianjin Zhenhua Prestressing Technology Co., Ltd.
- 全国主营:P C anchorage, Metal building material, Equipment and tools for concrete grouting and tension system.
- Shenzhen Maxlink Industries Co., Ltd.
- 全国主营:Spray coating equipment
- Yantai Wiredrawing Hardware Product Factory
- 全国主营:Electrogalvanized low carbon steel wire, Iron wire, Round nail, Steel masonry nail, Round steel nail.
- Yixing Powder Metallurgical Factory
- 全国主营:Air valve pipe, Engine oil pump, Engine oil pump rotor, Mechanical spare parts.
- Guangzhou Panyu Yingli Barometric-spring Manufacturing Co., Ltd.
- 全国主营:Air spring
- Weifang Chenglong Industrial & Trading Co., Ltd.
- 全国主营:Multi-purpose burglarproof door, Automobile parts.
- Wenzhou Shenlian Fastener Industry And Trade Co., Ltd.
- 全国主营:Fastener
- Yantai High Strength Light Building Material Co.
- 全国主营:Building material
- Yixing Cable Bridge Joint Factory
- 全国主营:Cable bridge joint, Generatrix slot
- Chongqing Clutch Factory
- 全国主营:Clutch sheet steel assembly, Main pin of steering joint main pin, Auto accessories.
- Yantai Mouping Hengli Spring Co., Ltd.
- 全国主营:Spring
- Tengzhou Jiuli Non-ferrous Metal Co., Ltd.
- 全国主营:Tube, Joint.
- Weifang Hanting Foundry
- 全国主营:Castings, Steel castings.
- Xinxiang Yinqi Machinery Co., Ltd.
- 全国主营:Machinery
- Foshan Nanhai Liancheng Hardware Factory
- 全国主营:Hardware
- Shanghai Xinmin Heavy Forging Co., Ltd.
- 全国主营:Forgings
- Zengcheng Xiancun Ironmaking Factory
- 全国主营:Pig iron, Spheroidal graphite castings, High manganese heat proof castings, Iron castings.
- Tianmen Power Line Equipment Co., Ltd.
- 全国主营:Electric power equipment.
- Yantai Welding Wire Factory
- 全国主营:Gas welding rod, Common steel nail, Gas shielded welding wire.