Profile：Configuration:   1. Taiwan STK speed motor control;   2. The docking station is 1000mm long;   3.35B imported high quality nylon chain transmission;   4. Special aluminum profile rails;   5. Special gear and trapezoidal screw synchronous widening structure;   9. Surface treatment: electrostatic spray computer white;   10. PCB width 50-300mm;   11. The front rails are fixed from left to right.