... Thinckess:12mm, 14mm, 15mm, 16mm, 18mm, 20mm4. Edge:adhesive and nails, square edge, tegular edge,concealed edge, shiplap edge, ... Environmental protection: no asbestos, no formaldehydeSound absorption: accordance with JC/T670 2005 which is the standard of the ... rooms, offices, electronic room, precise equipment room and the residential construction industry. fiber board with high quality and low price