With mechanism feed device, can control the elastic lace feed speed and senility, evenly and smoothing, with and edge-cutter, can improve sewing quality. Applied for underwear etc..

• 本机具有机械式送带装置，可将松紧带或蕾丝带的送料量及张力控制得均匀而准确，没有切刀修边器装置。适用于内衣、内裤等。