... from Southwest Aluminum (Group) Co., LtdPolyester coating: single coating, one layer, 18μm; double coating, two layers, 25~27μm.PVDF ... μm, and if required, it will be covered by another layer of varnish, 35μm in total.Pretreatment: the raw aluminum ... the domesticindustry, the “six coating five baking the multi-function production line”, which is applied to color coating,pattern printing, sanding and ...