pvc piping 1.The surface is gloosy and smooth, 2.the bottom is groove. 3.Waterproof, 4fire retarding,wearing pvc ... piping1)Fetures:wearing resistance,waterproof,flame retarding,aging resistance,smoothness, ... 5mm,6.0mm,7.5mm,8.5mm,9.0mm5)PVC%:40%,45%,50%6)Surface: common glossy, high ... supply by customers and made by us. pvc ceiling panel