Kev kho ntawm kev tsim kev puas tsuaj ntawm cov kav dej siab

Cov neeg ua haujlwm yuav tsum nthuav tawm cov kab kos ib kab raws li cov cuab yeej siv ua ntej kev tsim kho, kos cov cai ntawm cov kav dej, npaj cov txheej txheem vuam cuam tshuam, thiab npaj cov zawj raws li cov vuam hauv qab. Ua ntej txiav cov yeeb nkab, cov cim kev lag luam yuav tsum tau hloov pauv, thiab cov nplaim acetylene ntawm cov pa roj carbon steel yeeb nkab yuav tsum tau siv rau kev txiav. Thaum txiav, qhov loj me thiab du nto yuav tsum tau ua kom ntseeg tau. Siv cov tshuab lossis ion txiav cov kav hlau tsis muaj steel thiab cov kav hlau tsis muaj hlau, nws yuav pom tias cov yeeb nkab saum npoo yog tiaj tus, tsis muaj kab nrib pleb, tawv tawv thiab burrs, thiab inclination ntawm lub ntsej muag kawg yuav tsis pub tshaj 3 hli. Cov kws tshuaj ntsuam xyuas yuav tsum rov xyuas cov grooves, qhov ntev, thiab cov kev cai sib dhos ua ntej xa cov txheej txheem, kom qhov zoo ntawm qhov zawj tuaj yeem lees paub thiab cov txheej txheem vuam ua tau raug.