Urn chamber, useful in urn graves for funeral purposes, comprises watertight concrete and threaded sleeves made of stainless steel, which is placed at four corners for closing the chamber

摘要

Urn chamber comprises watertight concrete and threaded sleeves made of stainless steel, which is placed at four corners for closing the chamber, where in the lid, holes for screws are provided so that the screw heads are countersunk.