- Ningbo Chunli High Strength Fasteners Factory
- 全国主营:Standard parts, Non-standard bolt
- Shandong Taixin Hardwares Co., Ltd.
- 全国主营:Hardware
- Zhejiang Yuhuan Shengyuan Valve Fittings Factory
- 全国主营:Valves
- Ningbo Zhenhai Ningding High-strength Fastener Factory
- 全国主营:Fastener, Bolt etc.
- Zhejiang Yuhuan Shihai Hardware Product Factory
- 全国主营:Hardware parts
- Dingxiang Xinshiji Machine Co., Ltd.
- 全国主营:Flange
- Dingxiang Jiaming Machine Forging Co., Ltd.
- 全国主营:Flange
- Ningbo Zhenhai Guowei Nonferrous Metal Foundry
- 全国主营:Copper, Aluminium, Stainless steel, Ferroalloy precision casting and forging.
- Ningbo Yinzhou Yunlong Mingyue Plastic Fittings Factory
- 全国主营:Plastic fittings
- Ningbo Yunlong Watercraft Hydraulic Fittings Factory
- 全国主营:Spare parts
- Ningbo Zhenhai Gravity Fastener Factory
- 全国主营:High-strength fastener screw cap and nonstandard product.
- Guangdong Huasen Precise Foundry Co., Ltd.
- 全国主营:Precision casting parts
- Zhejiang Yuhuan Xinyang Valve Factory
- 全国主营:Vales, Pipe fittings
- Zhejiang Yixin Machinery Manufacture Co., Ltd.
- 全国主营:Auto fittings
- Dezhou Yasheng Rubber Plastic Products
- 全国主营:Oil well pipe worm protection ring
- Foshan Shunde Jinben Material Delivery Equipment Co., Ltd.
- 全国主营:Material delivery equipment
- Shangyu Ailuox Oblique Ceiling Skylight Factory
- 全国主营:Oblique ceiling skylight
- Yuhuan Kangping Spring Factory
- 全国主营:Spring
- Ninghai Lianfa Spring Factory
- 全国主营:Spring