We , Wenzhou YiLi Machinery Developping Co., Ltd. are Sino-American joint Venture, Total capital costa are USD 8 million. The whole company covers a area of 66 are, 56,000square meters. We are biggest one fastener manufacturer in Wenzhou, We export large quantity to Europe, America, Middle East Area, Southeast Asia and other countries; The products are all kinds of standard fasteners like hex head bolts,hex head cap screws,hex socket screws,Speedway guardrail bolts, hex nuts , threaded rods,flat washers and spring washers,the standards that we use are Germany standard DIN, America standard ANSI,ASTM, International standard ISO ,British standard BSW etc.