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.
The sand equivalent test quantifies the relative abundance of sand versus clay in soil It is measured by standardized test methods such as ASTM D2419, AASHTO , A higher sand equivalent value indicates that there is less clay‐like material in a sample During the test, material from the test specimen that can pass through.