[供应]供应16寸（406mm）五刀翼进口复合片石油开采用金刚石钻头

供应直径152mm,216mm,311mm,406mm,445mm石油天然气开采用PDC钻头，金刚石钻头，进口复合片钻头，四刀翼，五刀翼六刀翼八刀翼，型号，欢迎选购。