Ib lub hnab tuj yog lub thawv ntim khoom siv tau yooj yim rau kev thauj mus los. Anti-moisture, tiv thaiv plua plav, tiv thaiv hluav taws xob, ruaj thiab nyab xeeb, nrog lub zog txaus hauv cov qauv.
Kev thauj khoom thiab tshem tawm ntawm lub hnab ntim khoom yog yooj yim heev, thiab kev thauj khoom thiab kev thauj khoom tau zoo dua qub. Nyob rau hauv xyoo tas los no, nws tau tsim sai heev, thiab cov zis ntawm lub hnab ntim tau nce ntxiv. Cov ntaub ntawv siv feem ntau yog polypropylene, polyethylene thiab lwm yam polyester fibers. Nws yog tsim rau ntim ntawm ntau yam hmoov, granular thiab tej yam khoom xws li tshuaj, tsev cov ntaub ntawv, plastics, thiab minerals. Nws yog cov khoom lag luam zoo tshaj plaws rau kev khaws cia, kev thauj mus los thiab lwm yam kev lag luam.
Ib lub hnab ntim khoom tsim los ntawm kev txhim kho kev ntim khoom thiab kev thauj mus los yooj yim. Tag nrho cov tsos yog square, uas yog heev haum rau stacking tsheb thauj mus los. Qhov chaw nres nkoj valve hauv qab yog yooj yim rau cov ntaub ntawv sau, thiab sealing yog yooj yim thiab yooj yim.