stainless steel pipe 1) Grade : 321, 304, 304L, 316, 316L, 317, 317L,310s 2) Standards: GB/ASTM/ASME/DIN/JIS 3) TPI:SGS ... ,BV. stainless steel pipe Features:1) pipe diameter : 6mm-630mm pipe thickness : 0.8mm ... -25mm2) Grade : Grade : 301, 321, 304, 304L, 316, 316L, 317, 317L,310s etc3) Standards: /ASTM ...