mineral wool ceiling board with CE 600*600,300*600,600*1200,300*1200 ... 2004 ISO9001:2008 CE 6.5-20mm mineral wool ceiling board with CEStandard Size 300*600mm,300*1200mm,600*600mm,600* ... ) Moisture Resistant: Conform to the quality requirments of standard board(12mm,14mm) according to JC/T 670-2005 Environmental portection ... ISO9001:2008 ISO 14001:2004 CE Certificate mineral wool ceiling board with CE