- Taishan Steel Balls Trade Company
- Address:High Economic District Tai'an Shandong 271000 China
- Liyang Hengyu Machining Co.,Ltd.
- Address:Huanzhen dong Rd.,Zhuze Town,Liyang City, LIYANG Jiangsu 213351 China
- Sunrise(Ningbo) Precision Metal Inc
- Address:NO116 dong xin road , zhenhai economic development zone, ningbo , china Ningbo Zhejiang 315211 China
- Zhejiang Santong Pump Co., LTD
- Address:Sanchiku Industry Zone, Wenling, Zhejiang, China Taizhou Zhejiang China