of phenol formaldehyde resin pf polymer on the background from connected macromolecules

adhesives atom atomic atoms background badge billiard biology chemical chemist chemistry coating collection component compound concept connected copolymer education element formaldehyde formula graphic icon illustration information isolated laboratory macromolecular macromolecules medicine model molecular molecule object packet phenol phenolformaldehyde plastic polymer research resin science sign structure symbol synthetic technology vector web white wrapper