Tianjin Jinggong Metal Products Co.,Ltd major in produce tubing coupling , casing coupling , coupling blank ,coupling stock , pup joint ,thread protector ,tubing pipe , casing pipe ,crossover ,valves and Oil filed service .Jinggong keep 10,000 coupling storage include tubing coupling , casing coupling , coupling blank with various steel grade ,size,thread type.
Our company has been certified to ISO9001, ISO14001 and API 5CT, and owns complete inspection and test methods and security system. Head office located in Tianjin (In Northen China s Largest Port City) , where there is the biggest steel production base, which would be very convenient for you to fulfill purchasing task.