產(chǎn)品介紹：

Product Introduction：

Both serve the purpose of sewing shirts, unilorms, jeans, overcoats etc, They adapt the wide range of sewing materials
Synchronized leeding of needle and leed dog, which can prevent slippage and puckering between layers of material. They can perform two-rou of parallel stitching and decorative seaming with high quality.
With two sell-Iubricated vertical-axis rotating hook.
Knob type stitch regulator and lever type reverse leeding mechanism permit convenient operation.