Cov thawv ntim khoom yas yog ib puag ncig tus phooj ywg ntim ntim txhaj tshuaj molded los ntawm polyethylene (PE), polypropylene (PP), thiab acrylonitrile-butadiene-styrene copolymer (ABS) ua cov ntaub ntawv tseem ceeb. HDPE, vim nws qhov softness thiab toughness, feem ntau yog siv los khaws cov khaub ncaws hauv tsev.
Cov thawv ntim yas yog ib puag ncig zoo, muaj lub hau kaw, yooj yim txav nrog lub log, yog cov kua qaub thiab alkali resistant, roj resistant, tsis yog - tshuaj lom thiab tsis muaj ntxhiab, yooj yim los ntxuav, pawg kom huv si, yooj yim rau kev tswj, muaj siab load- cov kabmob muaj peev xwm, tuaj yeem ua zes, txuag chaw, hnav, thiab corrosion resistant. Raws li lub teb chaws tus qauv GB/T 28798-2012 "Plastic Storage Boxes," cov kev ntsuam xyuas tseem ceeb suav nrog kev cuam tshuam, kev muaj peev xwm thauj khoom, thiab kev ruaj khov. Kev sib piv kev sim ua los ntawm Harbin Consumer Rights Protection Center hauv 2024 tau pom tias tag nrho 20 cov qauv ua tau raws li tus qauv yuav tsum tau ua hauv cov kev ntsuas kev ua tau zoo.
