... TP304,TP304L,TP304/304L,TP304H,TP304LN,TP321,TP316,TP316L, TP316/316L, TP316Ti, TP321, TP310,TP310S,TP317L,TP347,TP347H etc.3. ... , heat exchanger, pressure container, condensator, water, electricity and so on.8. Quality guarantee: Tubes non-destructive testing, eddy current test ... (); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); ASTM A312 304/304L/316L/310S/321 Stainless steel pipe