... by drilling,sawing,nailing,planning and bonding and be in hot forming,hot-beinding and hot-folding and be weldedand bonded with supplementary ... no gap when concatenated,2)The wariety of colours and patterns,3)Long-lasting application,flatness,rot proof,flame,retarding ... houses,2)Toiler of building and hall,3)Common office,ceiling of business place,4)Public and management bathroom, widely used PVC ...