PACKING USING WATER SWELLING MATERIAL

摘要

PURPOSE: A packing member for sealing with a water-expanded member is provided to seal a gap between a door and a door frame with a water-expanded member expanded by absorbing water. CONSTITUTION: A packing member for sealing comprises a water-expanded member(101) and a covering member(102). The water-expanded member is expanded by absorbing water. The covering member surrounds the water-expanded member.