???????????????????????? ?????????????? ???? ??? MDB ????????????????????????????? ??????????????????????????????????????????????????????????????? ?????????? ????? ?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? ??????1.Enclosure (??
ก่อนตัดสินใจซื้ออุปกรณ์เซฟตี้ในโรงงาน ก่อนปฏิบัติงานควรคำนึงถึงปัจจัยใดบ้าง
????????????? ??????? ????????????? ( PPE : Personal Protective Equipment ) ??? ???????????????????????????????????????????????????????????????????????????????????????????????? ?????????????????????????? ?????????????????????????????????????????????? ???????????????????????????????????????? ??????????????????????????
สปริงดึง คืออะไร
???????? (Extension Springs) ??? ???????????????????????????????? ??????????? 2 ??????????????????????????????????????? ???????????????????????????? ???????? ?????????????????????????????????? ??????????????????????????????????????????????????????????????? ??????????????????????????????????????????????????????????????????????????
สปริงดึง (Extension Springs)
???????? ???????? ???????? (Extension Springs) ???????????????????????????????????? ??????????? 2 ??????????????????????????????????????? ???????????????????????????? ???????? ?????????????????????????????????? ??????????????????????????????????????????????????????????????? ???????????????????????????????????????????????????????????
สปริงดึง (Extension Springs)
???????? ???????? ???????? (Extension Springs) ???????????????????????????????????? ??????????? 2 ??????????????????????????????????????? ???????????????????????????? ???????? ?????????????????????????????????? ??????????????????????????????????????????????????????????????? ???????????????????????????????????????????????????????????