... is of the following features:1 Flat panels without gel coat: It is mainly used for ... industrial inner scaleboard2 Smooth surface panels Flat panels with gel coat: biggest width is 2700mm, ... panel of refrigerator car.3 Bead surface panels with / without gel coat, the biggest width of 1220mm, ... clean.The above mentioned panels can be combined with the froth, gypsum, polywood, aluminiumhoneycomb ,the ...