12.812.7圆棒银钢支12.212.612.912.012.4银钢枝12.312.1

7麻花/12.812钴/13.钴.打孔..12//6129德国领含0mm专用钻头不锈钢

12.7圆棒12.812.2银钢支银钢枝12.612.012.312.412.912.1

钴12.6含12.312.512.412.9头12.812.7麻花钻12.2加长12.1

适用12.812L恒大冰泉12