Machines and machine tools; machines for abating methane from exhaust gas; machines for converting methane to carbon dioxide; catalytic converters for exhaust gases; catalytic converters; machines and devices for the removal of methane compounds from waste gases; machines and devices for the catalytic-chemical decomposition of methane gas; machines and machine tools for treatment of gases; honeycomb converters made of ceramics; honeycomb cores of catalytic converters; industrial fluidised bed...