About this 3D model

Center Line Tool Draw the electrical cable track position at the center of the groove. Use a long-head marker pen suitable for 2.1mm wide marking module. Zhongbai Long-head Marking Pen, Punching Auxiliary Pen, Not Easy to Fade, Can Be Refills Ink, Deep Hole Operation Pen, Extended Tile Marking Pen, Hardware Processing Pen, Marking Key Points, Waterproof Construction Site Use, Special Oil-based Marking Pen - tmall.com Taobao