6. HSLA steel ① representation Binzhou stainless steel, alloy structural steels are basically the same. ② for professional use high strength low alloy steels, it should finally be marked in the steel. For example 16Mn steel, special steel for the bridge as "16Mnq", a special steel automobile frames as "16MnL", special steel pressure vessel is "16MnR". Stainless steel screws, stainless steel double carriage Binzhou stainless steel sheath, stainless steel adapter JB / T 9151.1-1999 fastener test method size and geometric precision bolts, screws, studs and nuts JB / T 9151.2-1999 fastener test method Dimensions and geometric precision wood screws JB / T 9151.3-1999 fastener test method size and geometric precision tapping screw JB / T 9151.4-1999 Test methods fastener size and geometric precision washer JB / T 9151.5-1999 fastener test method size and geometric precision pin JB / T 9151.6-1999 fastener test method rivet size and geometric accuracy JB / T 9151.7-1999 fastener size and geometric precision test methods ring JB / T 9151.1-1999 fastener test method Dimensions and geometric precision bolts, screws, studs and nuts 304 stainless steel screws, stainless steel 316 bolts, stainless steel studs stainless steel pin Binzhou, Binzhou stainless steel 304 stainless steel hose clamps tight top wire, 316 screws, stainless steel cotter pin head screws, Stainless steel screw slotted screw Binzhou, Jinan Road ground (certified), Binzhou stainless steel provided by Jinan Daoqin Trading Company. Jinan Daoqin Trading Company (www.daoqinshangmao.com) (www.daoqinshangmao.com) Shandong Jinan, hardware accessories leader over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer demand. Jinan Road ground in leadership with the staff warmly welcome all inquiries negotiations to create the Jinan Daoqin better future.