The corporation has hundreds of production and inspection equipment, more than 100 professional and technical personnel. All the production and inspection staff in the corporation have undergone special training, and work here with certificates. All the raw materials are purchased from famous and large domestic steel pipe mills. The corporation has its independent raw materials performances inspection laboratory, and every batch of coupling raw materials have to be gone through the strict inspection. The corporation adopts centralized inspection mode, with 100% full inspection for each coupling, and 100% MT inspection. Each coupling of the corporation has its unique marked number and has its own processing and inspection records, each contract of the corporation has its own file cover, in it with all the records related to the contract, so the products of the corporation have strong traceability.