Screw Jacks: SWL series cab iav ntsia hlau jack yog ib qho tseem ceeb lifting tivthaiv uas ua raws li JB/T8809-2010 tus qauv (yav tas los JB/T8809-1998 thiab JB/ZQ4391-86). Nws nta lub peev xwm thauj khoom ntawm 2.5 txog 120 tons. Nws qhov zoo muaj xws li cov qauv compact, me me, lub teeb yuag, kev sib raug zoo nrog ntau yam ntawm cov khoom siv hluav taws xob, tsis tshua muaj suab nrov, yooj yim ntawm kev teeb tsa, kev ua haujlwm yooj yim, muaj peev xwm ua haujlwm ntau, ntau hom kev xaiv, kev ntseeg siab, thiab lub neej ua haujlwm ntev.
Worm iav ntsia hlau jacks tau siv dav hauv ntau qhov kev lag luam, suav nrog cov tshuab, metallurgy, kev tsim kho, tshuaj, khoom siv kho mob, thiab kev noj qab haus huv thiab kev noj qab haus huv hauv zej zog. Lawv pab kom qhov tseeb thiab tswj kev hloov kho ntawm kev nqa lossis kev thawb qhov siab raws li kev ua haujlwm tshwj xeeb; lawv tuaj yeem raug tsav ncaj qha los ntawm lub tshuab hluav taws xob lossis lwm qhov chaw siv hluav taws xob, lossis ua haujlwm manually.