fiberglass net backing disc, for making flap disc, to match ISO standard Types and dimensions(According ... 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 backing Fiberglass backing disc ...