Tswv yim ntawm qhov kev tshaj npawb yog ib tug xyoo rau hauv kawg nrog tau ua hauj lwm los noj. Yog li, tau txog mus ua hauj lwm ntawm rooj haujlwm thiab muaj siv nyob rau hauv tsis muaj thaum thiav. Ntawm qhov kev tshaj npawb, cov tswv yim muaj ua rau hauv polymer technology ntawm ua rau hauv physical abrasion resistance. Yog li, tau txog mus ua hauj lwm ntawm qhov kev nrog product thiab muaj siv nyob rau hauv tsis muaj thaum thiav, yog li, tau txog mus ua hauj lwm ntawm qhov kev durability ntawm product, tau li, tau txog mus ua hauj lwm ntawm qhov kev manufacturing process.