Copyright Tieling Dongsheng Petroleum Machinery Co., Ltd. All rights reserved 辽ICP备14009156号-1
Address: No. 9 Liaohai Road, Yinzhou District, Tieling, Liaoning.
1. Uniform coating, high bonding strength and accurate dimensional accuracy;
2. The surface hardness of the inner hole is up to HV100900-1160, the friction coefficient is small, the wear resistance is good, and it can be used for sand and other friction.
Medium in the oil well;
3. It has good chemical stability and does not work in alkali, sulfide, nitric acid and most organic acids.
Excellent anti-corrosion and corrosion resistance.