1. ??n v? s? nghi?p ho?c doanh nghi?p cung ?ng d?ch v? quan tr?c môi tr??ng lao ??ng.Start out by ensuring every one of the necessary sections have interfacing connected. In the event your collar is a convertible collar using a stand, sew the collar segment first. Then sew the stand, enclosing the collar piece within.Now, in advance of next this e