Manually operated hand tools for sealing containers, namely manually operated hand tools for sealing containers with flexible outlets

O-rings; seals made of rubber for use in the field of pharmaceutical, chemical, or food industry; non-metal seals for use in the field of pharmaceutical, chemical, or food industry; sealing plugs made primarily of rubber, caulking materials and rubber stoppers for industrial packaging containers; blown films for uses other than packaging, namely, insulating films