... and communication engineering, architecture.Polyester box, made of unsaturated polyester resin, low shrinkage and fiber glass. It has excellent physical ... belows,300x250x140mm, 1lock400x300x200mm, 1lock500x400x200mm, 2locks600x400x230mm,2locks600x500x230mm,2locks800x600x300mm,2locks Fiberglass box/POLYESTER BOX/PLASTIC BOX/TIBOX/GLASS FIBRE ENCLOSURE/ELECTRIC BOX/METER BOX/BOX/DISTRIBUTION BOX