... in K20 and K30.ZhaoFeng Cemented Carbide Co.,Ltd specializes in manufacturing high property cemented carbide/ tungsten carbide products, including ... of standard and non-standard. Production system of tungsten powder,mixture powder of cemented carbide,cemented carbide blanks and its finishing ... kinds of carbide drawings.Usually the grade can be K20,K30,YG6,YG6X,YG8,YG15,YG20.Type: 01, 11,12 ...