Cardboard Kev Lag Luam

Kev tsim khoom ntawm corrugated board kev lag luam yog ib qho ntawm cov kev lag luam feem ntau hauv peb lub neej niaj hnub, Peb cov khoom ntim txhua hnub tsis tuaj yeem ua yam tsis muaj corrugated cardboard.qhov no txhais tau hais tias kev lag luam corrugated yuav tsum tsim kom muaj txiaj ntsig thiab tsis tu ncua.