Nyob rau ntawm thaj chaw ntawm cov khoom siv khov, cov hlau, lub zog loj, thiab cov yas yuav siv tsis tau cov khoom siv hlau (yas ua los ua hlau) kom ua kom yuag txo.
Lub hnab yas muaj tsawg tsawg. Feem ntau, qhov nqus ntawm lub hnab yas yog ntawm 0.9 thiab 1.5, thiab qhov kev nqus ntawm cov fiber ntau reinforced composite khoom tsis tshaj 2.0. Qhov kev nqus ntawm cov khoom siv hlau yog 7.6 rau A3 steel, 8.4 rau tooj dag, thiab 2.7 rau txhuas. Qhov no ua rau cov ntaub ntawv yas khoom siv rau cov tsheb thauj khoom. Ntawm qhov ntau qhov kev luj-txo, "yas-raws li hlau" yog nyob rau hauv ib lub sijhawm ceev ceev nrog kev loj hlob zoo thiab muaj txiaj ntsig zoo.
Siv tshuab hlau raws li kev siv PP (polypropylene), PC (polycarbonate) thiab ABS (acrylonitrile-butadiene-styrene copolymer) thiab lwm cov khoom siv hlau, hloov cov kab hlau, ua ib lub cev, ua Qhov nyhav ntawm lub tsheb txo 1 / 4-1 / 8 ntawm thawj qhov hnyav, uas ua rau lub tsheb sib zog thiab txo cov roj tsheb ntawm lub tsheb.
