Dab tsi yog qhov siab tshaj plaws tsim kub ntawm cov ntaub so ntswg hluav taws xob?

Qhov kub siab tshaj plaws tuaj yeem teem rau 55 degrees, tsis tas yuav tsum tau teem rau 70 degrees. Qhov tseeb tau ua pov thawj tias txawm tias nws tau teem rau 70 degrees, muaj pes tsawg tus neeg yuav siv 70 degrees, txawm tias nws yog cov phuam da dej lossis khaub ncaws, dai rau ntawm nws, vim tias qhov kub thiab txias nws yooj yim ua rau deformation thiab shrinkage. Tom qab tag nrho, ntau cov ntaub yog ua los ntawm cov ntaub ntawv fiber ntau, thiab nws yog ib qho nyuaj rau kev kub siab rau lub sijhawm ntev!