... machine can produce fire-resistant sheet, ceiling board, skirting board, stave wood and door board, which are widely used indoors and outdoors ... -purified active MgO as the main fireproof material of board, high-quality MgCl2 as the main cementing material to solidify ... materials, alkali-resistance fiberglass mesh to ensure the high strength of board, soft sawdust and light non-combustible perlite as ...