seamless stainless steel tube 1) Material: 304, 304L, 310S, 316L, 317L, 321, 347, and So on. 2) Standards: ASTM/DIN/JIS/EN seamless stainless ... steel tube 1) Material: 304, 304L, 310S, 316L, 317L, 321, 347 ... wall thickness7) End Application: Petroleum, Chemical, Automobile, Medical Equipment, Boiler Heat-exchanger,