In China, designation WNS gas fired boiler stands for gas fired boiler in the structure of horizontal internal combustion. It adopts three-pass structure in modular construction.WNS gas steam boilers are widely used in chemical industry, plastics industry, coatings and automotive industries, food process ,bitumen industry, construction equipment industry, shipbuilding industry, apparel clothing, washing, ironing, the pharmaceutical industry, biotechnology, sauna and beauty, hotels, restaurants, sports,[...]