1,ccemented carbide precise instruments 2.Grade: K10,K20,K40,P20,P30,M10 ect ... 92.0 ≥2350Fine grain alloy, with high wear resistance. high anti-bending strength, high resistance to bonding, high thermal strength. Suitable formachining of refractory ... G20 14.0 ≥85.5 ≥2600Conventional wear resistance, high anti-bending strength, used for steel alloy etc. customize ccemented carbide precise instruments