... and sock heel.4. Use stepping motor to control, which may adjust the yarn's tensile force ... and output for each section on PC and the control panel.7. It can knit dimensional cocks, can knit ... extension, highspeed,and high efficiency.PC Control System1. It uses advanced PC control box from our own.2. ... Use advanced ARM core 32 bits RISC processor as control core.3. Use advanced industry-level bus CAN ...