Those products are used in generator set, factory waste gas, backup power supply, etc., which aim to remove the nitrogen oxides.

With close to 15 years of experience in canning & housing, Hoonpai supports OEMs with robust and flexible canning to meet a variety of packaging and space requirements. This catalytic converter was used in the area of mining systems, customized product.

DPF or Diesel Particulate is a honeycomb configured, ceramic filter installed inline in the exhaust stream and are used to reduce/eliminate the visible particulate matter (PM) or soot, from the exhaust of diesel engines.
A DOC (Diesel Oxidation Catalyst) is similar in size/shape/location to the DPF and it reduces the N20 (Nitrous Oxide) in the exhaust, as well as an EGR (Exhaust Gas Recirculation) loop which pulls raw, untreated, exhaust directly from the exhaust manifold and plumbs it back into the intake of the engine.