Cov ntaub ntawv tseem ceeb ntawm cov ntawv hlau

Sheet hlau, kev siv thev naus laus zis, tseem tsis tau muaj lub ntsiab lus tseem ceeb ntawm cov ntawv hlau. Raws li lub ntsiab lus hauv phau ntawv xov xwm txawv teb chaws, nws tuaj yeem txhais tau tias: Cov ntawv hlau yog cov txheej txheem ua haujlwm txias rau cov ntawv hlau (feem ntau hauv qab 6 hli), suav nrog shearing, xuas nrig ntaus / txiav / sib xyaw, folding, riveting, splicing, Forming ( xws li lub tsheb lub cev), thiab lwm yam. Nws zoo kawg li feature yog tias lub thickness ntawm tib seem yog tib yam.