... ERW and Seamless, round and rectangular or square, aew according to standards ASTM A53, ASTM A106, ASTM A795, ASTM A135 ... JIS G3444, BS1387, DIN2394, DIN2395, or similar standards. According to buyer's request is available. SIZE: 16mm-508mm, Wall thickness ... tube, water transferring tube, oil pipe, casing pipe, sprinkler fire fighting system tube (with groove available), EMT conduit, furniture tube and ...