After many years of development, our company has the advanced facilities for producing screw bolts and the completed equipment for product examination, our company is specialized in producing such products as high strength bolts with large hexagon head for steel structures, high-strength bolts and nuts of grade 6.8, grade 8.8, grade 10.9 and grade 12.9, hot galvanizing standard components, electro-galvanized standard components, double-threaded bolts, full thread screws, foundation bolts, high quality of fasteners including ANSI, DIN, BS standards, plain cushions, spring cushions, inner-hexagon bolts, iron pagoda bolts and nuts set, guardrail bolts used in expressways, various lengths of specialshaped components with specifications of m12to m68, etc.