Sucker Rod Coupling & Sub Couplings & Polished Rod Coupling Product Description Product Feature: API Sucker Rod Coupling, Class SM 1,Material: AISI 5140 (40Cr), 2,Coat Thickeness: 0.01-0.02 in 3...View More
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AISI 5140 Oilfield Pump Parts Polished Sucker Rod Coupling