rigid and high quality rock wool board, with density from 50kg/M3 up to 200kg/M3, regular size 1000mm x 600mm, 900mm x 600mm, 1200mm x 600mm etc.working temp up to 700 C degree, water resistant ability.widely used for roof insulation, wall insulation, etc.widely exported to USA, Canada, and Middle east, Japan etc.with good price and quick delivery for clients.