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Alloy Steel 4130 4140 Integral Spool Flange-Ended Forging for Oilfield Equipment Use

Alloy Steel 4130 4140 Integral Spool Flange-Ended Forging for Oilfield Equipment Use
SS304 disc steel forging ring forging shaft forging cylinder forging1. Basic Information:  1.1.Forged SHAFT,forged RING...

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