VR tool Backpressure valve tool Drilling Accessories Production and manufacturing process - quality control points Cleaning assembly Hydrostatic test ...
Threaded flange Drilling Accessories Product parameters Material Grade AA-HH Temperature Level PU LU Specification level PSL1-4 Performance level PR1....
Flange,Ring Gasket,Hummer Union,studs and nuts, Needle valve FAQ The information you may like to know before order: 1. Methods of Payment: T/T or L/C. ...