Qhov loj me ntawm txhuas lub freezer iav qhov rooj; tsom rau cov chaw ua haujlwm hauv khw muag khoom thiab ua haujlwm ntawm kev ua haujlwm ntawm kev ua haujlwm thiab kev ua kom zoo nkauj. Cov tuam txhab tsim muaj ntau ntawm ST
Yav dhau los, cov ncej puab qab rooj yuav tsum tau welded artificially, lub zog wel plees, nws yuav yog ib qho teeb meem kom sib sau ua ke lub khob insulated zoo. Qee zaum nws yuav ua rau insu