Lifting tool yog ib yam khoom siv rau kev nqa, ib qho cuab yeej rau kev ua haujlwm tsis tu ncua thiab nqa cov khoom hnyav.Cov cuab yeej nqa feem ntau pib txoj haujlwm ntsug lossis ntsug thiab kab rov tav ua haujlwm tom qab tus neeg nqa khoom siv cov khoom siv.Tom qab mus txog qhov chaw, lawv raug tshem tawm, thiab tom qab ntawd mus rau qhov chaw rov qab nrog qhov khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khawm
saw hoist, clampt, hooks ib xyoos los soj ntsuam
lub cev muaj zog rau lub hlis los kuaj xyuas
hlau hlua, chains, siv ib lub hlis los soj ntsuam
Yog tias koj nyob hauv Western Australia, pls rau hauv ib qho ntawm peb lub khw muag khoom hauv Suav teb peb cov khoom siv kev cob qhia hnyav.Peb cov neeg ua haujlwm tuaj yeem pab teb cov lus nug.
Raws li GQ, qhov pib tsis txaus yog qhov tshwm sim los ntawm kev tawm tsam ntawm kev thov los ntawm cov neeg uas tsis tuaj yeem mus ntsib lawv cov gyms hauv zos ntxiv lawm - thiab qhov tseeb tias tsuas yog tsis muaj chaw tsim khoom txaus (ob leeg hauv Asmeskas thiab txawv teb chaws) los tso tawm tag nrho. uas hlau (uas yog qhov feem ntau kettlebells yog ua los ntawm).
Nyob rau hauv nruab nrab thiab lig xyoo pua 18th, British Watt tau txhim kho thiab tsim lub tshuab hluav taws xob, uas muab lub zog rau cov cranes.Nyob rau xyoo 1805, Glenn engineer Lenney tau tsim thawj pawg ntawm cov tshuab hnyav hnyav rau London Dockyard.Xyoo 1846, British Armstrong tau hloov lub tshuab hnyav hnyav ntawm Newcastle Dockyard rau hauv hydraulic crane.
Thaum pib ntawm lub xyoo pua 20th, Tebchaws Europe tau pib siv ntauwd cranes,