Cable Carrier Drag Chain Semi Enclosed Type Plastic Towline Machine Tool Nested (10 x 15mm) 1. Open on both side,easy installation and repair, free movement, low noise, wear-resistant, high-speed movement, easy installation. 2. Suitable for using in reciprocating motion of the occasion, is able to build in cable, tubing, water pipes, etc. 3. Used widely as a component and service parts in CNC machine tools, electronic equipment, counting devices, electrical machines, etc.