Drawer kov yog ib qho tseem ceeb ntawm cov tub rau khoom, uas yog siv los nruab rau ntawm tub rau khoom kom qhib thiab kaw qhov rooj yooj yim. 1. Raws li cov khoom siv: ib leeg hlau, alloy, yas, ceramic, iav, thiab lwm yam. 2. Raws li cov duab: tubular, sawb, kheej kheej thiab ntau yam duab geometric, thiab lwm yam. 3