- 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 almost certainly have distinct speed configurations. The speed dictates how quickly the needle moves. You’ll want to keep it low so you have great control when sewing.It’s correct that i