We mainly produce national (GB), German (DIN), Japanese (JIS), American (ANSI/ASTM) and English (BS) standards of fasteners, auto fittings, electrical fittings, bulldozer screws, crane screws, harbor machine screws, crusher screws, mechanical engineering screws, including T type screws, rectangle heads, double heads, sole screws, drawing bar screws, hexagonal sockets, outer six angles and all kinds of nonstandard screw caps with high strength of 8.8 degrees, 10.9 degrees and 12.9 degrees. We are an export-oriented enterprise authorized to be engaged in foreign trade. Our products are mainly marketed to ten countries in Europe, America, Canada and Australia. We are an international famous accessory supplier for engineering machinery. Our factory is located in Industrial Zone, Botou City, Hebei , China