... groove coupling:Our camlock coupling are made to standard of A - A-59326(previously called MIL-C-27487)or DIN 2828. ... Economic Development Zoon, Cixi city of Ningbo, Zhejiang Province,transportation is convenient, close to the port of Ningbo / Shanghai port. ... The company was founded in 2006, is a set design, development, production, sales, service as one integrated plant ...