Using super coarse grain cemented carbide as raw material and 100% alloy after pressure sintering, the hardness and toughness of the drill bit can be increased by 30% simultaneously
Grey Granite Aggregate for Concrete is a broad category of coarse particulate material used in construction, including sand, gravel, crushed stone, slag, recycled concrete and geosynthetic aggregates.
Artificial graphite materials have been successfully used in pressure casting of nonferrous metals. For example, zinc-alloy and copper-alloy castings molds are made of pressure graphite casting molds. The artificial graphite materials have been used in au
Copper-steel composite material is a bimetallic composite material with steel as the base material and continuous coating of copper with a certain thickness on one or both sides of the steel by rolling diffusion process. This new material perfectly combin