Scope ntawm Kev Siv Sandbelts

1. Board ua kev lag luam: raw ntoo boards, laminated boards, fiberboards, particle boards, veneer panels, rooj tog zaum, khoom siv hauv tsev, thiab lwm yam;

2. Hlau ua kev lag luam: cov hlau tsis muaj hlau, ferrous hlau, thiab lwm yam;

3. Lwm yam kev lag luam xws li ceramics, tawv, fiber ntau, xim, yas thiab roj hmab khoom, thiab pob zeb.