Cov khoom siv fiberglass tiaj tiaj tiaj, xws li cov xov tooj hluav taws xob, cov xaim hluav taws xob, engineads, engineering rub cov pas nrig rau thee mines
Nws cov yam ntxwv suav nrog lub teeb yuag, lub zog siab, cov xim ci, zoo nkauj zoo nkauj, thiab cov nplaim hluavtaws kuj tseem tuaj yeem pleev xim raws li cov neeg siv khoom.
Nws muaj ntau cov kev siv, suav nrog lub tsev pheebsuab sawv ntsug, cov cuab yeej siv pob ncaws pob, cov kav hlau txais xov kis las, kev ua kom zoo nkauj, cov neeg zov me nyuam, thiab nkhaus.