Txhawm rau kom paub tseeb tias qhov kev siv dag zog tau muab pov tseg -txuag saw hoists, ntshiab thiab qhov muag - ntes cov cim yuav tsum tau ua tam sim. Cov ntsiab lus cim yuav tsum suav nrog lub npe khoom, qauv, hnub seem thiab seem vim li cas kom tsis txhob siv qhov yuam kev. Nyob rau tib lub sijhawm, cov khoom siv khib nyiab yuav tsum sib sau ua ke thiab muab tso rau hauv qhov chaw khaws khoom pov tseg, thiab cov chaw ua haujlwm rov ua dua tshiab thiab cov chaw pov tseg yuav tsum ua kom rov ua dua tshiab thiab rov ua dua tshiab, tsom mus rau kev kho ib puag ncig ntawm cov khoom siv hlau, cov roj pov tseg thiab lwm yam khoom siv. Ib qho nyiaj seem tag nrho yuav tsum raug tsim los thoob plaws hauv cov txheej txheem, nthuav qhia cov ntaub ntawv khoom siv, cov txheej txheem kev pom zoo, kev rov ua dua thiab pov tseg, thiab lwm yam. Nws yog txwv tsis pub ib lub tsev lossis ib tus neeg los kho dua tshiab, disassemble thiab rov ua dua qhov kev siv zog scrapped-txuag saw hoists rau hauv kev ua lag luam, lossis embezzle lawv mus rau hauv ib qho kev lag luam uas tsis muaj kev tso cai rau kev ua haujlwm zoo.
Cim npe nrov: Tuam Tshoj dag zog txuag saw hoist lwm tus neeg, Hoobkas
