... 2). Country of Origin: China 3). Grade: 201,202,304,316L,430,etc Abstract:1). Product Name: stainless steel pipe2). Country of ... Origin: China 3). Grade: 201,202,304,316L,430,etc 4). Standard: Standard JIS, AISI, ASTM, GB, DIN ... tolerance, high quality, most reasonable price.2). Material: 201, 202, 301, 304, 304L, 316, 316L ,321,317L,310S,904L and,etc.,3 ...