- 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;Thanks Useful 9 Not Useful six If straight pins depart the patch too wavy for easy sewing, it is possible to staple it temporarily in position and take away the staples soon after sewing. Fusible webbing will also