... )Tolerance: Thickness: +/- 0.01mm ,Width: +/- 2mm5) Zinc Type: Zero spangle,common spangle,small spangle,big spangle 6) Process method ... export packingOur company:Our company is a professinal manufacture in producing PPGI,PPGi,Galvanized steel coil,Galvalume Steel Coil ... . GL/GI Production Line3. Galvanized steel coil/Galvalume steel in Stock 4. Corrugated sheet making machineOur certifications : 1. ...