Product specs Od: nps(1/8"-8") 6-219mm Th: 5s-160 Length: up to 20m (u-bend tubes) Materials: 321/321h, 304/304l/304h/304ln, 316/316l, 310s, 317/317l, 347/347h, 904l, duplex stainless steel (s31803, s32750). Raw material supplier: yongxing special steel (if material is not appointed by customers) Standard export packing
