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Secondary seal of casing spool has multi-kind seal structure, safety seal and credibility. It is used slip or mandrel hanger according as customer requirement. We provide our clients with products advanced in technology and excellent in quality and provide satisfactory services. Main products has 2000~15000PSI gatevalve, wellhead equipment, choke & kill manifold, 2000~15000PSI mud valve and middle& high Kelly plug valve.
