Fibreglass plate are specially backing for making flap disc, the type including T27 ,T28,T29. The plates are made of the fibreglass yarn and weaved into fiber glass net at our workshop. The specification of our fibreglass plate is: 1 ) Diameter : 85 mm ~ 180mm 2 ) Layer : 5 layers ~ 12 layers, typical 7~9 layers 3 ) Color : Black, Brown, Yellow 4 ) Raw Material on Surface : Black Fabric, Black Paper The customers from European, Korea, U.S.A . are satisfy for the quality of our fibreglass plates , especially in the point of high strength , special types and safety working speed. The inquiry by OEM are welcome with the customer's labels and rings, we have put into the production for some special types and sizes according to customer's inquiry .