Ningbo Rock Metal Product Co., Ltd. | Address: 104/32 Bldg,Dushi Senlin II, Linyu Rd., Ningbo, Zhejiang 315100, China 
www.rockmetalproduct.com | Send Inquiry | Phone: +86-(574)-88210948
Ningbo Rock Metal Product Co., Ltd. provides sintered, casting structural and mechanical seal components. Our products include sintered oil-bearings, miniature deep groove ball bearings, mechanical se more...