Min. Order Reference FOB Price
1 Set US$100.00-800.00 / Set
Product Description
Product Description 10000psi 4 1/2" API Oilfield Drilling Wellhead Check Valve NC 38 NC46 10000PSI API Oilfield Drilling wellhead check valve This product design and manufacturing completely meet the requirement of API Spec 6A Wellhead assembly and X'mas tree specification,often used for kill ...