standard introduction this standard specifies the dimensional requirements and coating thickness of steel and steel alloy electroplated fasteners, and gives high tensile strength or hardened or surface hardened fasteners to eliminate hydrogen. . huang zitao and xu yiyang's variety show explores their cooperation and chemical reactions 1 dongguan zhixin automation instrument co., ltd. 10 people
company introduction shanghai xiangsheng fastener co., ltd. has a registered capital of 100,000, and is located in malu industrial park, jiading district, shanghai. xiangsheng has experienced several years of rapid development and has established many branches in various provinces and regions in china. the company currently has a total number of 210 employees and a total operating area of 9000 square meters... main products: cylindrical head welded nails (pin, shear nail), large hexagonal high-strength bolt connection pairs for steel structures, torsion shear high-strength bolt connection pairs for steel structures, anchor bolts, double-head bolts, steel structure galvanized pull strips, ordinary installation bolts, etc.shanghai xiangsheng fastener co., ltd. all rights reserved website registration number shanghai