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شهادة سلامة : ضمان أمن العمل
??? ????????? ?????? ?????? ??????? ?? ???? ?????. ????? ??? ???????? ????? ???????? ??????? ??????. ???? ????????? ??? ???? ???? ??? ???? ??? ????????. ????? ???????? ????????: ???? ?? ?? ???? ?? ????? ??? ???????? ???????? ????????? ??? ?????? ?? ???? ?????. ????? ?? ???? ??? ???? ?? ???????? ??????? ?? ????? ????????. ????? ?????? ??? ??