Lastly, pin the sleeve into area, matching notches and remaining careful from the ‘pitch’ on the sleeve in advance of sewing the sleeves into put. a) V?n b?n ?? ngh? công b? ?? ?i?u ki?n th?c hi?n ho?t ??ng quan tr?c môi tr??ng lao ??ng c?a t? ch?c theo m?u quy ??nh t?i M?