- Jining Steel Window Factory
- 全国主营:Steel window
- Qingdao Qingke Railway Development Co., Ltd.
- 全国主营:Traffic facility
- Tianjin Jinnan Xinyida Metal Net Factory
- 全国主营:Metal net
- Gaomi Xiazhuang Town Hongli Tanhua Machine-made Factory
- 全国主营:Casting, Iron product
- Gaomi Xiazhuangzhen Tongxing Casting Co., Ltd.
- 全国主营:Casting
- Changyi Precision Spring Co., Ltd.
- 全国主营:Spring
- Jining Special Material Foundry
- 全国主营:Iron casting
- Shanghai Zhengdian Forge Plant
- 全国主营:Forgings, Steel forgings
- Ningbo Peiyuan Auto Fittings Manufacturing Co., Ltd.
- 全国主营:Shock absorber for auto and motorcycle, Hardware fittings, Non-standard high-strength screw and nut, Auto brake pads with rare-earth steel fiber, Friction material.
- Jiangyin Shengang Malleable Cast-iron Factory
- 全国主营:Forgings and castings
- Jiangyin Qingyang Xiaoqiao Hardware Spring Factory
- 全国主营:Springs
- Beijing Ge'erma Plastic Steel Door And Window Manufacture Co., Ltd.
- 全国主营:Door and window
- Changzhou Hongzhuang Metal Component Factory
- 全国主营:Acetylene bottle cover
- Tianjin Ninghe Mingsheng Metal Ware Factory
- 全国主营:Template, Support rack
- Yixing Hongda Zhixian Electric Appliance Equipment Factory
- 全国主营:Remote control retractable door, Fountain equipment, Sliding contact wire, Plastic window and door.
- Jingjiang Jishi Hardware Factory
- 全国主营:Rectifier fittings
- Yixing Jianxing Chemical Equipment Joint Management Factory
- 全国主营:Stainless steel biological fermentation tank