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5-1/2”P110 LC API 5CT CASING COUPLINGS are ready to be delivered.


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5-1/2”P110 LC API 5CT CASING COUPLINGS  are ready to be delivered.

“Quality first, customer uppermost” has been our goal of pursuit, and the continuous improvement of product quality management system is the consistent aim of us. The company with perfect quality system and testing equipment, advanced technology, has continuously passed the APT senior auditor’s strict audit with excellent grades many times, and has obtained American API monogram License. The certificate number is API 5CT-1368.