???????????????????? ???????????????????????? LLDPE ????????????? ????? ?????? ??? ??????? ?????????????????????????????? ???????????????????????????????????????????????????????????????????????????? ???????????????????????????????????????? ????????????????????????????????????????????????? ???? ?
คุณสมบัติและวิธีการใช้กำยาน
????? ????????? ????? ????????????????????????????????? ???????????????????????????????? ??????????? (????????) ????????????????????? ???????????????????????????? ????????????? ???????????????? 1 ??? ?????????????????????? ?????????????????????????? ??? 1 ???????????????? 15-20 ???? ????????????????????????????????????????? ?????
ก่อนตัดสินใจซื้ออุปกรณ์เซฟตี้ในโรงงาน ก่อนปฏิบัติงานควรคำนึงถึงปัจจัยใดบ้าง
????????????? ??????? ????????????? ( PPE : Personal Protective Equipment ) ??? ???????????????????????????????????????????????????????????????????????????????????????????????? ?????????????????????????? ?????????????????????????????????????????????? ???????????????????????????????????????? ??????????????????????????