... 50%,55%,60%,65%,70%Package4 sheets/carton, 5 sheets/carton8 sheets/carton, 11sheets/carton15sheets/carton, ... calcium carbonate, PVC ratio: 40%~70% in general.5) Light weight, easier to install and maintain.6 ... quantity.4) Advanced technique and machines of production.5) Good production capacity, and short production cycle(>= ... good easier.8) Enthusiastic after-sale service. P-25 pvc ceiling panel