Morteng yog ib lub chaw tsim khoom ntawm carbon txhuam, txhuam tuav thiab lub nplhaib sib dhos ua ke ntau tshaj 30 xyoo. Peb tsim, tsim thiab tsim tag nrho engineering daws teeb meem rau lub tshuab hluav taws xob tsim khoom; cov tuam txhab kev pabcuam, cov chaw muag khoom thiab thoob ntiaj teb OEMs. Peb muab peb cov neeg siv khoom nrog tus nqi sib tw, zoo tshaj plaws, thiab cov khoom lag luam ceev ceev.