... x 25 x 25, 3 / 4 / 5 / 6 x 30 x 30, 3 / 4 / 5 / 6 / 7 x 40 x 40, 4 / 5 / 6 / 7 x 50 x ... 50, 4 / 5 / 6 / 7 / 8 x 60 x 60, 5 / 6 ... , 304, 316 2) Size: 100 x 100 x 50mm, 100 x 100 x 40mm, 80 x 80 x 50mm, 80 x 80 x 40mm5. Bright round bar 1 ... -86899591 Fax:0086-022-26621633Website: www.cg-steel.com aisi 431 stainless steel round bar