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.
29 Aug 2015 , There are several types of surface mining, and strip mining counts as one of them , It is much more efficient compared to underground mining , of Intercropping 5 Advantages and Disadvantages of Instrumentation Amplifier.
An adit (from Latin aditus, entrance) is an entrance to an underground mine which is horizontal , The use of adits for the extraction of ore is generally called drift mining Adits can only be driven , Access to a mine by adit has many advantages over the vertical access shafts used in shaft mining Less energy is required to.