???????????????????????????????????????????????????????????????????????????????????????? ??????????????????????????????? ????????????????????????????????? ?????????????????? ????????????????????????? ????????????????????????????????????????????????????????? ???????????????????????????????? 2014 ???????????????????????????????????????????
ก่อนตัดสินใจซื้ออุปกรณ์เซฟตี้ในโรงงาน ก่อนปฏิบัติงานควรคำนึงถึงปัจจัยใดบ้าง
????????????? ??????? ????????????? ( PPE : Personal Protective Equipment ) ??? ???????????????????????????????????????????????????????????????????????????????????????????????? ?????????????????????????? ?????????????????????????????????????????????? ???????????????????????????????????????? ??????????????????????????