a kind of backing for making flap disc,fiberglass backing,fiberglass backing plate,backing pad,polishing pad backing Types and dimensions(According to ISO15635:2001): ... ,115(117)mm,140mm,170mm, 178mmApplications: Used as the backing pads of Flap Disc,Mop Disc and Flap Wheel.Shipment ... : by 20 feet ocean container. key words:fiberglass backing,fiberglass backing plate,backing pad,polishing pad ...