SMT kauv phom duav
STM yas rab riam yog dawb huv. Cov khoom siv no ruaj ruaj, tsis muaj ntxhiab, thiab muaj peev xwm yuav khaws cia rau ib lub sij hawm ntev yam tsis tau poob. Cov khoom siv khov thiab haum rau ntau thaj chaw xws li kev lag luam, architecture, fine arts thiab lwm yam.
Lub hom phiaj tseem ceeb
Cov khoom no feem ntau yog siv rau kev siv tshuaj yaj ywm sib tov hauv kev lag luam, nrog kev lag luam yooj yooj yim thiab kev pab lub neej ntev. Lwm cov kev siv feem ntau yog siv los txhuam tus cwj mem thiab ntim tus cwj mem. Yooj yim rau siv, tsis txhob muab diav pov tseg, thiab siv tau ntau txoj kev.
Nta
1: Cov khoom no yog tawv, hnav-resistant, noo noo thiab tiv thaiv corrosive.
2: Cov khoom siv zoo tsim, txuas ntxiv rau lub neej ua haujlwm ntawm qhov khoom.