1.bright surface, high precision size, smooth finish. 2.steel coil 3.Application: Security Door, Construction Material Our company's products have hight ... ProductsCold rolled steel coilSpecificationThick:0.18mm~1.2mm,Width:712mm~1000mmMeterialST12,DC01,SPCC,SPHC,Q195,SPCDApplicationHigh Grade Security Door, Construction Material, and ...