Patent ID: 8758694

Claim:
A holding sealing material comprising: a plurality of laminated mats each including inorganic fibers; and one or more fixed parts partially combining said mats, wherein each of said mats has a basic rectangular shape that has longer sides along a longitudinal direction of said mats and shorter sides substantially perpendicular to the longer sides in a plan view, each of said mats has a recess on one of the shorter sides of said rectangular shape, and a projection on another shorter side, each of said mats is designed to be wound around an object to be wound so that the projection and the recess are fitted to each other, said mats have respective longitudinal lengths that increase as a distance from said object to each of said mats increases, a mat that is placed at a closest position to said object having a shortest longitudinal length, and an area of the projection of the mat that is placed at the closest position to said object is smaller than an area of the projection of a mat that is placed at a farthest position from said object.