- 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;Many thanks Helpful 9 Not Handy 6 If straight pins depart the patch as well wavy for easy sewing, you can staple it temporarily in place and take away the staples just after sewing. Fusible webbing will also be use