- Có t?i thi?u 02 n?m kinh nghi?m trong l?nh v?c quan tr?c môi tr??ng lao ??ng ho?c 05 n?m kinh nghi?m trong l?nh v?c y h?c d? phòng;Your sewing device will most certainly have various velocity settings. The velocity dictates how immediately the needle moves. You’ll want to maintain it small so that you have excellent Handle when sewing.Throug