Finally, pin the sleeve into position, matching notches and being watchful in the ‘pitch’ with the sleeve before sewing the sleeves into spot. 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?u s?