... steel manufacturer 2.High quality 3.Specifications can be offered 4.Competitive price 5.Prompt delivery time Specifications:Square steel ... 2mmStraightness: max 6mm/m square steel Size: 5.5*5.5--200*200mm Material: SS400,ASTM A36,ASTM A572,ST37 ... -2,S45C,Q235B,16Mn,Q345B Length: 5.8--12m For the best quality, ... a highly attention.Thanks! Hot rolled Square steel billet