Lubrication by oil braid is designed to increase durability of the rotary hook and simultaneously stabilize its movement, thus sewing quality is improved without stains on materials.

• 采用了一种油线式润滑的设计。这样不仅增加了旋梭的耐久度,而且也稳定了旋梭的移动,因此缝纫的质量也得到了提高,也不会污染布料。