Dongguan Guoling Machinery Co., Ltd., specializes in developing and manufacturing screw/bolt-making machines. The products include 2 Die 3 Blow Parts Former, Heading Machine, Thread Rolling Machine an...

1) Foshan Guangdong, 2) Hubei

A leading manufucturer of the screw machine in China. 2005, "Yuhai Screw Machinery Factory" established at Foshan Guangdong. Quickly expand.2011, we was renamed "Yuhai Mach...