Copper tube /3 holes Electrode tube/ multi hole copper tube 3.1*400mm/ 2.0-3.0-4.0-5.0*400mm for Drilling EDM

描述

描述

Copper tube /3 holes Electrode tube/ multi hole copper tube 3.1*400mm/ 2.0-3.0-4.0-5.0*400mm for Drilling EDM