Specifications 1. Grade:201,303,304/L,316/L,317L,309,310,321,904L ... to 500mm 3. Form:Round square Basic Info. Model NO.: 201, 301, 302, 304, 304L, 316, 316L, 321, 309, 310Type: ... be produced according to drawing and sample 3. Material Grade 201, 301, 302, 303, 304, 304L, 316, 316L, 321, 309S, ... , 310S etc 4. Standard ANSI/ASTM/SUS/GB/DIN/EN/BS 5. Surface Bright finish, hot rolled pickled, polished 6. ...