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