astm standard stainless steel welded pipe 1)O.D:15mm-1500mm ... -20mm 2)Grade:301,321,304,304L,316,316L,317 astm standard stainless steel welded pipeFeatures:1) pipe diameter : 15mm-1500mm ... 301, 321, 304, 304L, 316, 316L, 317, 317L3) Standards: GB/ASTM/ASME/DIN/JIS 4) Applications range: for use in the ... bundles or wooden case, or as per customers' requirements astm standard stainless steel welded pipe