Chinese-Foreign JOINT VENTURE HUNAN LIANGANG FASTENERS CO., LTD. is a High-new Technical enterprise. It has passed ISO9001:2008 Certification, with new type cold-heading machines of multi-station and advanced technical from Italy. The main products include RIBBED, HEX and ROUND series insert nuts, in both Unified Thread System and Metric Thread System. The head type includes Flat, Countersunk, Thin head. The products successfully change the way to assemble parts in a thin sheet. It needn't weld ...