Quality Control

BOB pursues the aim of "Quality First,Customer Supreme".Our production are strict accordance with the standard of ISO9001,API 6D etc.To provide quality products and satisfactory service is our object.In additional,there are over ten work posts available,such as physical and chemical analysis,no damage check,heat treatment control,precise check,strength test, sealing test and oil lenses check etc. All products are fully inspected and where necessary,tested before they are included in our stocks.All goods are subject to documented inspection procedures prior to despatch to ensure that the material complies fully with the customers'specification.