... size, smooth finish. 3.deep drawing,security door, roof steel. Our company's products have hight quanlity which controled from ... the material,our material are from TAIYUAN IRON&STEEL(GROUP)CO.,LTD..was used by high grade company, ... was strickly controlled in quanlity and surface. ProductsCold rolled steel coilSpecificationThick:0.18mm~1.2mm,Width:712mm~1000mmMeterialST12,DC01,SPCC ...