Koj paub dab tsi txog cov yam ntxwv ntawm qhov chaw dav dav

Qhov dav-qhov ncauj qhov muag nuv yog tsuas yog ua los ntawm cov roj carbon ua zoo siv hlau lossis alloy hlau pov thiab kho cua sov. Piv nrog lwm cov dav dav dav hlau, nws muaj lub zog siab dua, cov kev nyab xeeb ntau dua thiab cov haujlwm ntau dua. Nws lub zog kawm yog tsuas yog M, S, cov qib thib 4, 6, thiab 8 zaug ntawm kev ua haujlwm tshaj plaws.

Qhov dav-lub qhov ncauj nplhaib muag nuv yog tsuas yog siv los ua txoj kev sib txuas twj, thiab nws yog siv dav hauv kev hoisting thiab lifting teb. Cov nyhuv zoo tshaj plaws tuaj yeem ua tiav los ntawm kev koom tes nrog slings thiab rigging. Txawm li cas los xij, them sai sai rau ib puag ncig thiab kev thov cov cai thiab cov kev qhia tshwj xeeb hauv daim ntawv thov, thiab tsis tshaj daim ntawv thov.