短語(yǔ)詞組短語(yǔ)polycrystalline diamond compact bit 聚晶金剛石複郃片鑽頭diamond impregnated bit make 金剛石孕鑲鑽頭sintering diamond drill bit 燒結(jié)金剛石套料鑽Diamond tool bit series 金剛石刀頭系列natural diamond core bit 天然金剛石取心鑽頭diamond reaming bit 金剛石鉸孔鑽頭diamond surfaceset bit 表鑲金剛石鑽頭diamond trepanning bit 金剛石套鑽synthetic diamond impregnated bit 人造金剛石孕鑲鑽頭 返回 diamond bit