... material Co.,ltd can supply many kinds of stainless steel tube as well as pipe. Product Description1) Standard: ASTM A688 ... etc. 5) Surface: Bright anneal, mirror polish, satin finish, mill finish 6) Test: Eddy current / hydrostatic, mechanical test, chemical ... bag / steel crate). 8) Main application: Heat Exchanger tube, car engine tube, pressure vessel tube, water transportation, decoration etc