The safety stitch overlock machine makes an additional row of stitching and uses 4 to 5 spools of thread.

安全线迹拷边机产生的线迹比拷边机的线迹多了一排，用4～5个线轴。 收藏。

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Fortuna Silver also set up a business for local women to sew and stitch safety vests and safety suits for the local miners as well run their own sewing business.

FORBES: FEATURE: Fortuna Silver's San Jose Mine Mill Expansion A Small Part Of A Bigger Picture