polyester enclosure,which is made of unsaturated polyester resin, low shrinkage and fiber glass. Polyester box,made of unsaturated polyester resin, low shrinkage and fiber glass.it ... ,500x400x200mm,600x400x230mm,600x500x230mm and 800x600x300mm.The protection degree is IP66. polyester enclosure/IP66/TIBOX CHINA/SMC box-frp smc enclosure