Rock sliver is the main raw material of natural basalt. After melting at high temperature, it is made into artificial inorganic fiber by high-speed centrifugal equipment. Meanwhile, special binder and dustproof oil are added. Rock wadding is made of high strength rock wadding board cut into special structure, so it has high pressure strength and excellent fire resistance. As the filling material of rock wool sandwich board, rock sliver provides good fireproof performance for wall board and roof board. All kinds of specification products produced by chemical quick drying cement and mechanical curing technology make an important contribution to creating a constant temperature and sound insulation effect of good, safe and high quality exterior wall.