Specification of high strength bolts with large hexagonhead, large hexagon nuts, plain washers for steel structures.
钢结构用高强度大六角头螺栓,大六角螺母,垫圈技术条件。
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Steel Series: steel with high strength large hexagonhead bolts, torsion shear bolt connections made, the steel truss joints of high strength bolts, studs, drill the end of wire.