???????????????????????????????????????? ????????????? ??????????? ?????????????????????????????????????????????????????????? ??????????????????????????????? ???????????? (pressure gauge) ??? ????????????????????????????????????????????????????????? ???????????? ?????????????? ??? ??????????????????????????
เกจไฮดรอลิค ตัวช่วยวัดแรงดันสำหรับระบบไฮดรอลิค
???????????????????????????????????????? ??????????????? ????????????? ??????????? ?????????????????????????????????????????????????????????? ??????????????????????????????? ???????????? (pressure gauge) ??? ????????????????????????????????????????????????????????? ???????????? ?????????????? ??? ??????????
สาระน่ารู้เกี่ยวกับรอกไฟฟ้า
??????????????? ???????????? ???? S ???????? ??? ?????????????????????????????????????????????????????????? ?????????????????????????????????????????????????????????????????? ?????????????????????? ??? ???????????? ?????????????????????????? ?????????????????????????????????????????? ?????????????????????????????????????????? ????