... quality,ASTM C612 , JIS A 9504,CE,A60, Non-conbustible,rock wool board, insulation materials,blanket with wire mesh Granulated wool ... structure, spraying for fire proof of steel structure building and manufacturing sound-absorbing ceiling board.Product properties Organic material content: ≤0 ... and storage, keep product away from moisture and avoid throw. ROCK WOOL-ware house