Treatment of plastic materials, namely, processing and reprocessing of plastics; Treatment of plastic materials, namely, the addition of polymer additives, radio opacifiers, and antimicrobial agents to materials to render them ecogenic, radiopaque, or bacteriostatic; application of coatings using thermal plasma spraying techniques; [ application of protective surface coatings to ] * surface protection coating services for * machines and tools by means of chemical vapor deposition; application...