日本KYOWA协和精工PCD单刃钻头DSD-1130 DSD-1140
KYOWASEIKO协和精工PCD单刃钻头DSD-1050 DSD-1060、DSD-1090 DSD-1100日本KYOWASEIKO协和精工PCD单刃钻头、玉崎供应KYOWASEIKO协和精工PCD单刃钻头DSD-1110 DSD-1120、日本KYOWA协和精工PCD单刃钻头DSD-1130 DSD-1140
KYOWASEIKO协和精工PCD单刃钻头DSD-1050 DSD-1060、DSD-1090 DSD-1100日本KYOWASEIKO协和精工PCD单刃钻头、玉崎供应KYOWASEIKO协和精工PCD单刃钻头DSD-1110 DSD-1120、日本KYOWA协和精工PCD单刃钻头DSD-1130 DSD-1140
