Shanxi black stone countertop manufacturing process Shanxi black stone countertops include: Shanxi black granite countertops, marble countertops, sandstone countertops, slate countertops, limestone countertops and quartz stone panels, which are granite and mainstream marble countertops, and the production number and the application point of view, granite countertops is the largest most widely used. Shanxi black stone countertop main machining processes are: the choice of materials → Grand Cherokee → polished → → Cutting Edge Processing → dug basin drilling → finishing → try to fight patch test → packaging → completed