韩国KOSG挤压丝攻 挤压丝锥 

CPM-V-NRT   M2*0.4           RH4-P

CPM-V-NRT   M2.6*0.45        RH4-P

CPM-V-NRT   M3*0.5           RH5-P

CPM-V-NRT   M4*0.7           RH6-P