Purchase Qty. Reference FOB Price
50-999 Pieces US$6.65
1,000+ Pieces US$6.36
Product Description
Product Description Oilfield Sucker Rod Coupling,Polished Rod Coupling,Sub Coupling 1) Basic Material: AISI5140(high quality carbon steel) 2) Coat Material: Ni60A Alloy Coating 3) Coat thickness: 0.010in-0.020in 4) Standard: API Spec11B 5) Type: ...