- Tai'an Dongfeng Casting Co., Ltd.
- 全国主营:Iron casting
- Cangzhou Yaxing Pipeline Co., Ltd.
- 全国主营:Pipeline
- Crawford Door (kunshan) Co., Ltd.
- 全国主营:Door
- Beijing Forestry University Forest Science Co., Ltd. Seed Branch
- 全国主营:Plant product for garden virescence.
- Beijing Fushou Medical Equipment & Technology Co., Ltd.
- 全国主营:Rehabilitation equipment
- Zibo Zhangdian Shengyuan Industrial Co.
- 全国主营:Ironwork
- Pingdu Hardware, Electrical Appliance And Chemical General Co.
- 全国主营:Household electric appliance
- Qingdao Zhuyou Industrial Co., Ltd.
- 全国主营:Casting, Machinery fittings.
- Shenzhen Arosson Industrial Co., Ltd.
- 全国主营:Hardware parts
- Xintai Metal Ware General Factory
- 全国主营:Stainless steel ware, Aluminum ware
- Qingdao Yufeng Needle-making Co., Ltd. Special-shaped Needle Factory
- 全国主营:Sweater needle
- Shandong Weishan Xinxing Abrasion-proof Cast Steel Works
- 全国主营:Steel casting
- Rongcheng Seal Factory
- 全国主营:Fasteners
- Beijing Five Increases Security Doors Manufacturing Co., Ltd.
- 全国主营:Anti-theft security door
- Xiaoshan Jili Machinery Manufacturing Co., Ltd.
- 全国主营:Castings.
- Penglai Xinwei Standard Parts Co., Ltd.
- 全国主营:Standard parts
- Laiwu Dingli Economic And Trade Co., Ltd.
- 全国主营:Metallic material
- Tai'an Hengxin Door Co., Ltd.
- 全国主营:Burglarproof door
- Yantai Ruifeng Metals & Minerals Import & Export Co., Ltd.
- 全国主营:Metals products(hardware),tools,casting and forging piece,building materials(stone),minerals,and genera merchandise.