Fishtail silk manufacturers, fishtail silk, silk fishtail Yongnian | brand new industry standard iron beacon

 Supply of high-quality fish bolt, Yongnian County marked mine iron railway parts factory, please come to order! Fish bolt (fishtail silk) sometimes can be replaced with hex bolts. Supply of fish bolt, fish bolt provide the latest price quotes fishtail silk fishtail bolts latest sales charts and fish bolt News. Yongnian County marked mine iron railway accessories factory is quality fish bolt processing Distribution Department. Welcome new and old customers to visit, to discuss cooperation! General bolt is "XY" indicates the intensity of the fishtail silk mixed batch, X * 100 = tensile bolts fishtail silk this custom, X * 100 * (Y / 10) = yield strength of the bolt (because, according to identification requirements: yield strength / tensile strength = Y / 10) as 4.8 fishtail silk brand, this bolt tensile strength: 400MPa, yield strength: 400 * 8/10 = 320MPa fishtail silk factory, fishtail silk, silk fishtail Yongnian | brand new industry standard iron buoy marked by Yongnian County iron mine railway parts factory. Yongnian County marked iron mines Railway Parts Factory (www.tbtlpj.com) strong, credible, in Handan railway, subway equipment and other equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead standard iron mine railway accessories and you hand in hand into the brilliant, for a better future!