... for mechanical engineering.Seamless carbon and Alloy Steel Mechanical Tubing For mechanical engineering.For mechanical and pressure use,and also for ... washing/ annealed / cold pilgered / manual polished / mechanical polished 3) Standards: a) GB/T 14975-2002, ... hastelloyG-3,hastelloyG30, HastelloyX,HastelloyHX 5 Application range: For foodstuff, medical equipment, boilogy, electron, chemical, petroleum ...