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black surface aisi 4140 4140h round bar

Product name:black surface aisi 4140 4140h round bar
Application: Mainly used in petroleum, chemical, medical, food, light industry, mechanical instruments and other industrial pipelines and mechanical structural components.


SA193 B7 Stud Bolts - rolexmetals


SA193 Grade B7 Stud Bolt, Hex Bolt, Threaded Bar, Threaded Rod Hex Head Bolts, Full Threaded Bolts, Stud Bolts, Foundation Bolts, Threaded Bars, Threaded Rods, Hex ...

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