Fastener, Hex Bolts, Stainless Steel Bolts manufacturer / supplier in China, offering Galvanized Class 10.9 EU Fasteners 1000h Salt Spray & Sustainable, 1000h Salt Spray Resistant Bolts En 14399 & European Farm Use, USA Grain Silo Bolts Class 10.9 + 1000h Zinc-Nickel Coating and so on.