... treatment contributes to more compact structure and extended service life. drawing dies from W104 to W114, or Sxx series, or customized ... as per cutomer's drawing. Grade usually in K20 and K30.ZhaoFeng Cemented Carbide Co ... K20,K30,YG6,YG6X,YG8,YG15,YG20.Type: 01, 11,12, 13,20,22,23,S11,H11,H13,W103,W104,W105 ... 6,13*8,13*10,16*10,16*14,20*12,22*14,22*18,26*16, 30*21,40*25 ...