本机采用双线单直针刺料、针杆挑线、弯针勾线的工作原理，形成双线链式线迹，并能根据缝纫要求调节线迹长度和线迹松紧。缝纫线迹整齐、美观、牢固。广泛应用于牛皮手套、针织手套、手套、高档羊皮手套等贴皮缝制工艺。 This machine adopts single straight needle stitch, needle bar thread take-up and looper threadcatching to produce double chain stitch, and it can be adjusted according to different stitch length and tightness. The stitch is neat, beautiful and firm. It is suitable for sewing leather gloves,knitting gloves, safety gloves, luxury cape gloves