Kev Tshaj Tawm Ntawm Cov Nplauv

Muaj ntau ntau yam hauv cov av, uas yog cais raws li cov qauv: lub paj huab cua hauv pem teb, khoom ntoo, khoom siv hluav taws kub hauv tsev, khoom ntoo, xyoob pem av, cork pem teb, thiab lwm yam. Raws li kev siv, cov plag tsev yog cais raws li tsev neeg cov khoom ua si pem teb, cov khoom ua si hauv pem teb, cov chaw ua si sab nraum zoov, kev ua si pem rooj, kev ua kis las, thiab lwm yam. Raws li kev qhia tawm ntawm qib kev tiv thaiv, muaj: E1 qib pem teb, hauv lub tshav dav hlau ntawm JAS lub hnub qub, thiab lwm yam. Qhov tseeb, tsuav yog cov ntaub ntawv tseem tsis ruaj, tsis-deforming, kev tiv thaiv kev tiv thaiv ib puag ncig, nws tuaj yeem txuag thiab kev kho, siv.