... .ISO9001-2000 certification 2.manufacture and exporter 3.many kinds of designs ♣ 60*60 ceiling♣♣♣ ♣♣ ♣♣ ♣♣ ♣♣ ♣♣ ♣♣ ♣♣ ♣♣ ♣♣ ♣♣ ♣♣ We are ... is 600mm x 600mm, 595mm x595mm and so on,and the thickness is from 7mm to ... 14mm, 15mm, 16mm, 18mm,20mm3) Edge: Square edge and tegular edge Performance: 1) Decoration, sound absorption, fire ... Formaldehyde. Accessories: Ceiling T bar (32 and 38H model) 60*60 ceiling