片语
diamond d drill bit金刚石鉆头
diamond-drill operator金刚石鉆机操作员
diamond electroplated drill电镀金刚石鉆头
sintering diamond trepanning drill烧结金刚石套鉆
diamond bit[地质] 金刚石鉆头;鉆石鉆头
diamond core drill金刚石打孔鉆
diamond trepanning drill金刚石套料鉆
diamond core drill bit金刚石鉆头
Diamond core drill segment金刚石薄壁鉆刀头
Electroplated Diamond Core Drill电镀金刚石套料鉆