... Grade:TP304, TP304L, TP316, TP316L,TP316Ti, TP310S, TP321 ect. STAINLESS STEEL SEAMLESS PRECISION TUBES, HEAT EXCHANGER TUBES, BOILER TUBES.GRADE: 304 ... 6.0MM ~ 273MM.WT: 0.5MM ~ 25MM PRODUCTION EQUIPMENT18M vacuum annealing furnace,LG-150,LG-60 Primary pilger machine,LD ... EQUIPMENT Hydrostatic test Laser diameter testMachanical propertyUT test stainless steel seamless tube304 316 213