... -Zinc:60-120g/m2 4-Durable,weatherable,corrosion resistance Pre-painted ppgi coil (The Flow-Process Diagram of PPGI)Specification&Description1 ... unit,corrugated roof,wall,rainwater drainage pipe,roller shutter door Inside:door,doorcase,lightsteelroof structure,foldingscreen,ceiling,elevator2.Transportationinside decoration of ...