Gold Member Since 2012
Audited Supplier
Jiangyin Golden Machinery Equipment Co., Ltd.

Drill Collar for Oil, Steel Roll Oil Collar, Work up Roll Collar manufacturer / supplier in China, offering Non-Magnetic Steel Drill Collar for Oil, Forging BS970 817m40 Stand Mandrel Shaft, Forged SAE4140 SAE4340 42CrMo Steel Shaft with Qt and so on.

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