Supply of high-strength bolts, high strength bolts crane high-strength bolts, Yongnian County standard Factory Lite provides high strength bolts latest offer price, high-quality high-strength bolts processing distribution at 8.8, the latest sales charts strength bolts 1.9 high-strength bolts famous enterprises, for businessmen to provide strong 12.9 high strength bolts news. Welcome new and old customers to visit high-strength bolts parameters, to discuss cooperation! Strength bolts manufactured using high-strength materials. Screw high-strength bolts, nuts and washers produced by the high-strength steel, the steel used 45, 40 boron steel, 20 manganese titanium boron steel, 35CrMoA so on. Ordinary bolts used Q235 (equivalent to past A3) steel. Supply of high-strength bolts, high strength bolts crane, Yongnian County standard Factory Lite provides high strength bolts latest offer price, high-quality high-strength bolts processing distribution at 8.8, the latest sales charts strength bolts 1.9 specification high-strength bolts, for merchants to provide strong 12.9 high strength bolts news. Welcome new and old customers to visit, to discuss cooperation! Bolt material: 18Cr2Ni4W, 25Cr2MoV steel; bolt size: M27 ~ M48. Because of such steel is easy to form a passive film on the surface, and this will make the bolt passivation film can not get good adhesion chemical nickel-phosphorus layer, so you must take special measures to pre-treatment to remove the film in advance. High-strength bolts wholesale high-strength bolts _ _ high strength bolts factory stock sales | Lite Lite by Yongnian County standard Factory. Yongnian County standard Factory Lite (www.ynjxbzj.com) strong, credible, in Handan fastener industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Lite standard factory and you hand into the brilliant, for a better future!