Cov zaj duab xis yog tsim los ntawm cov txheej txheem casting, thiab polyethylene raw khoom yog plasticized thiab extruded los ntawm daim kab xev casting txheej txheem;Cov khoom no ntxiv high-end elastic raw cov ntaub ntawv rau cov qauv tsim, thiab siv cov shaping roller nrog cov kab tshwj xeeb kom cov yeeb yaj kiab muaj cov qauv.Tom qab cov txheej txheem kev hloov kho, cov yeeb yaj kiab tsim muaj qhov hnyav qis, qhov muag muag zoo, siab tensile tus nqi, siab hydrostatic siab, siab elasticity, daim tawv nqaij tus phooj ywg, siab barrier kev ua tau zoo, siab seepage kuj thiab lwm yam ntxwv, uas muaj peev xwm ua tau raws li ntau yam khoom ntawm hnab looj tes. waterproof.