Khoom siv
OAK International, raws li lub tuam txhab muag khoom ntawm Shandong, tau cog lus los muab cov kev pabcuam zoo rau kev lag luam xws li steel qauv installation, cov khoom siv, kev tsim hluav taws xob, kev tsim choj, kev tsim kho tsheb ciav hlau, thiab kev sib dhos tsheb. Kev cia siab rau qhov muaj zog ntau lawm thiab R & D muaj peev xwm, OAK tuaj yeem muab cov neeg siv khoom nrog ntau yam kev daws teeb meem.
