In the field o f waste gas treatment, Huali has various technology which includes absorption , adsorption acid waste gas treatment technology, adsorption, combustion, biological, ion organic waste gas treatment technology, oxidation, biological, ion odor purification technology; ion fume purification technology. Has got a number of patents, and able to provide solutions for  waste gas from oil industry, iron and steel, electroplating, electronics, semiconductor, solar photovoltaic, LED, food, pharmaceutical, food and beverage, machinery manufacturing, farming plants, sewage treatment plants and other industries.