... precision size, smooth finish. 3.deep drawing,security door, roof steel. Our company's products have hight ... 712mm~1000mmMeterialST12,DC01,SPCC,SPHC,Q195,SPCDApplicationHigh Grade Security Door, Construction Material, and so on . Certificate:ISO2001Inner ... /- 0.02MM Width tolerance = + 2MM / - 0MMPackage: Fully wrapped with waterproof paper and covered with hardboard securety strapped with steel bands.