- 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;Seal your thread that has a knot or to the machine. As you’ve produced it every one of the way across the patch, finish the stitch which has a hand knot or by back-monitoring over the device.Every single strategy