This kind of knive is made by best pure tungsten carbide raw material,guaranteed high hardness and high wear resistance, the cutting edge is very sharp,flatness andhigh precision degree.
According to the national standard of China (GB/T 1196-2017), it should be called "aluminum ingot for remelting" and "standard aluminum" in London market. It is produced by electrolysis of alumina-cryolite. Aluminum ingot can be divided into three kinds a