标签：Pickling - 英国华人论坛

The installation of hydraulic transmission equipment is to use the pipeline to the hydraulic equipment and valve components, according to the drawings required to link up and be fixed position. Therefore, the installation of hydraulic system...英国华人论坛

The main purpose of austenitic stainless steel is to rust and rust. Stainless steel corrosion depends mainly on the surface passivation film, if the passivation film is incomplete or defective, stainless steel will still be corroded. Engin...英国华人论坛