hoist lever
hoist lever ແມ່ນເຄື່ອງມືທີ່ໃຊ້ກໍາລັງຄົນເພື່ອດຶງມືຈັບແລະໄດ້ຮັບ traction linear ໂດຍຜ່ານຫຼັກການ lever ເພື່ອບັນລຸການປະຕິບັດການຍົກຫນັກ, traction, descent ແລະ calibration.
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