collar making machine type: LT868B-32 LT868B-54 LT868B-66 LT868B- ... 14G 16G. Width:32,54,66,80 in type LT868B-32 LT868B-54 LT868B-66 LT868B-80 collar ... in any direction by steping motorroll system multistage combined type roll system.controled by DC electric machine, 4 ... frequency control, synchronous belt moves back and forth,proximity switch control move routeauto stop advice yarn broken, knot fabric, ...