... , 316, 316L, 317,310S,904L and etc 2.Standards: GB/ASTM/ASME/DIN and so. stainless steel tube Features:1) pipe diameter : 6mm-630mm ... pipe thickness : 0.8mm-25mm2) Grade : 321, 304, 304L, 316, 316L, 317,310S,904L and ... use in the petroleum, chemical, medical equipment, boiler heat-exchanger and other fields. 5.packing:standard export packing. 6.Payment:by ...