Our machining at very high precision levels require not only good equipment,but also skilled people and effective organizing. We focus on precision all the time, and precision Inspections are performed during every production process. After the inner bore has been made, we use mandril gage to inspect if the bore is complied with API requirements. We will inspect the outer diameter by vernier caliper after the surface is machined. When inspecting the threads, working gages of different sizes which have been send to China Master Gage Centre for inspection half a year are employed and paid great attention to. So threads we make are all in very good condition and at high precision level.
Inspectors are holding valid inspection certificate issuing by the authority of China Metrology Institute and they have been nominated by our company.
