... certain number of boxes will be put to wooden pallets orderly.Thickness: 2.4mm-3.5mm(Tolerance:±0.3mm)Inner diameter: 16 ... )Outer diameter: 75mm,85mm,90mm,95mm,105(107)mm,115(117)mm,140mm,170mm, 178mmApplications: Used as the backing pads of Flap ... ocean container.key words:fiberglass backing,fiberglass backing plate,backing pad,polishing pad backing Fiberglass backing disc