Peb tau cog lus rau R & D ntawm qhov tob tob thev naus laus zis, niaj hnub ua kev tsim kho tshiab, ua tib zoo tsim thiab tsim ntau yam phom laum tshuab thiab cov khoom lag luam. Tsis tas li ntawd, peb kuj tuaj yeem kho cov cuab yeej sib sib zog nqus qhov tob, tshwj xeeb cutters, fixtures, ntsuas ntsuas, thiab lwm yam rau cov neeg siv khoom.