Sheet hlau yog dab tsi? Sheet hlau yog cov txheej txheem ua haujlwm txias rau cov ntawv hlau (feem ntau tsawg dua 6 hli), suav nrog kev txiav, xuas nrig ntaus / txiav / sib xyaw, folding, vuam, riveting, splicing, sib sau. Nws cov yam ntxwv yog: 1. uniform thickness. Rau ib feem, lub thickness ntawm tag nrho cov seem kuv ...
Nyeem ntxiv