Goyenchem-PR100 Petroleum Resin Goyenchem-PR115 Petroleum Resin Goyenchem-PR120 Petroleum Resin Goyenchem-PR125 Petroleum Resin Goyenchem-PR135 Petroleum Resin Petroleum Resin for Printing Ink Petroleum Resin for Printing & Coating Petroleum Resin for Adhesive Industry GOYENCHEM-PR L SERIES (L70/L80/L75) GYC Liquid Type Petroleum Resin