Established in 1980,we are a professional manufacturer of standard fasteners, the mainly products are hex nuts, threaded rods, anchor bolts and casting expansion pipe.
Our company has passed the international quality management system ISO9001:2000, it could produce according with DIN934(Code forging:M6-M24;Hot forging:M27-M64),DIN975(M5-M52), ANSI(1/4"-2.1/2"), BS, ISO and GB [Details]
HAIYAN DAZHONG NUT CO.LTD - Company Introduce
Established in 1980,we are a professional manufacturer of standard fasteners, the mainly products are hex nuts, threaded rods, anchor bolts and casting expansion pipe. 