SS400+B Alloy Steel Billet 3sp 5sp 1),Grade:200 300 ... ATSM AISI JIS 3),hot rolled;Q235 Q195,ISO SS400+B Alloy Steel Billet 3sp 5sp1),Grade:200 300 400Series2), ... 310S seriesLaiwu Laite Commodity Co., Ltd. is an international trading company and has been dedicated to the trade in steel industry ... -0634-6461612,13054836377Mobile Phone: 13963400909Fax: 86-0634-6461613 SS400+B Alloy Steel Billet 3sp 5sp