Vim li cas Siv Cov Lus Txiav Txawv Tebchaws Thiab Qhov Zoo Yog Dab Tsi?

Ordinary cuttingwire yuav txawv txav thaum lub sijhawm ua haujlwm vim tias nws yog mos, thiab qhov ntev ntawm lub sab yuav muag, uas yauv cuam tshuam qhov tseeb thiab ceev ntawm cov txheej txheem txiav. Cov hlau-chromium-aluminium hlau yog ib qho nyuaj, tab sis nkig thiab yooj yim tawg. Cov xov txiav txawv teb yuav tsis ua mos, nws tsis yog yooj yim deform ntawm qhov kub, thiab nws yog ruaj. Nws yog qhov zoo tshaj plaws thermal txiav xaim.