SKY Mining and Construction Machinery Co., Ltd. is a hi-tech, engineering group. We are specialized in the research, development, and production of industrial crushing, powder grinding, mineral processing equipments and other related devices. Our products have been sold to 120 countries and areas of Southeast Asia, East Europe, South America, the Middle East and Africa etc, and more foreign markets will be promoted in future.
We hold "Pursuing the Technology and Quality" as our management concept all the time. Relying on absorbing world leading crushing and powder processing technology, advanced management and quality control system, as well as our full efforts, SKY has earned high reputation among our customers.
Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original , In the context of underground coal mining in the United States, the term slate was commonly used to , In fact, this natural slate, which requires only minimal processing, has the lowest embodied energy of all the roofing materials
Slate has a dull appearance and occurs in a number of colors including light and dark gray, green, purple a , Slate is often mined in open pit quarri , The process is relatively simple: locate or create breaks in the stone, remove the stone.