产品名称：GB4-3大型蓬帆缝纫机
产品图片：

特点：

    这款缝纫机升降式送料牙；交替压脚，此结构在任意长度针距下，缝纫滑性，粘性缝料及特长制品时，都能保持上下层不移位，使制品整齐，线迹美观；连杆挑线结构，使主轴转速得以提高，减轻了声响，保证了整车的质量、延长了使用寿命。可先用加大摆梭，增加容线量，减少换线次数，提高工作效率。

Features:

This sewing machine lifting feed tooth; Alternating pressure foot, this structure in any length of the needle spacing, sewing smoothness, viscidity seam material and extra-long products, can keep the upper and lower layer not shift, make the products neat, beautiful line trace; The connecting rod picks the line structure, causes the spindle speed to be able to raise, reduces the sound, guaranteed the whole vehicle quality, extended the service life. Can be used to increase the shuttle, increase the volume of line, reduce the number of line change, improve work efficiency.