Oriental Containers Ltd. Manufactures Printed ROPP Closures with Seal Guard. Oriental Containers Ltd. Is an ISO 9002 awarded company. The company manufactures a wide range of packaging products which includes ROPP caps, chamfered closures, crowns, aluminium collapsible tubes, Aluseal plastic closures, tin and aluminium cans, twist of caps and printed metal sheets. The Printed ROPP Closures with Seal Guard comes with a brand name of "Topseal" and is mainly used for Pharmaceuticals, Food Products, and Petrochemicals etc.