SLICKBACK

Back-up boards, back-up sheets, back-up panels, entry boards, entry sheets, and entry panels made out of paper for use in the operation of drilling holes in printed circuit boards

Back-up boards, back-up sheets, back-up panels, entry boards, entry sheets, and entry panels made out of wood for use in the operation of drilling holes in printed circuit boards; back-up boards, back-up sheets, back-up panels, entry boards, entry sheets, and entry panels made out of fiber board for use in the operation of drilling holes in printed circuit boards