With pure raw material shale, the tile is sintered in hightemperature without glazed surface, and some products can be recycled and reused.
砖的成份单纯，主要以页岩为主，表面不施釉，产品经高温烧制，部分产品可以回收再利用。
2
With high quality shale as raw material, the products are extruded by hard plastic vacuum technology and sintered in tunnel kiln by fuel gas with stable hightemperature.