... :200,300,400 series 3.Diameter:6-360mm Stainless Steel Round Bar 1) Grade : 321, 304, 304L, 316, 316L, 317, ... Processing :cold/hot drawn,cold rolled etc.Stainless Steel Round Bar1) Outside Diameter: from 3 mm to 240mm2) Main ... of our best attention all the time.type stainless steel round bar size3 mm to 240mmgrade321, 304, 304L, 316, 316L, ... ,SGS,and third part inspection. 304 Stainless Steel Round Bar