Our production description of White gray solid surface quartz stone  countertops1. Manufacturing quartz stone slab / tile2. Fabricate quartz countertop / vanity top / table top3. Standard wood package or customized package4. Customized Logo Printed / Sprayed / Labeled5. OEM Color / Design6. Stock slab retail7. Prefabricated top retail8. Other service related to the product or projects Slab size: 3000*1400mm / 3200*1600mm / other sizes availableThickness: 12/15/18/20/25/30mm Production information of White gray solid surface quartz stone  countertopsManufacturing Process of White gray solid surface quartz stone  countertops Classified & PurifyRaw materials are classified and Purified to ensure the quality before mixing. MixingRaw materials are fed into mixers and blended together. Different colors have different time-table. Molding & PressingThe mixture is poured into mold and formed into slab sizes, then pressed under a condition of vacuum and vibration process. HeatingThe unfinished slabs are moved to the kiln and heated to give a ultimate strength and solidity.PolishingSlabs are then gauged, calibrated and polished. Quality InspectionSlabs will need to pass the quality inspection before packed and labeled.