... , folding screen, elevator, stairway, vent gutter ELECTRICAL APPLICANCERefrigerator, washer, switch cabinet, instrument cabinet, air conditioning, micro-wave oven, bread makerFURNITURECentral heating slice, lampshade ... 3 circumferential bands in steel,galvanized metal fluted rings on inner and outer edges,galvanized metal & water proof paper wall protection disk ...