Qingdao Kaineng Environmental Protection Technology Co.,LTD (Stock Code: 838388) is one of the largest boiler manufacturers in the North China, it is a national leading high-tech enterprise, formally listed on main board on August 5th,2016, referred to as Kaineng Tech. The company mainly manufactures energy saving and environmental protection products: wast heat boiler, low temperature economizer, oil and gas fired boiler, pin tube, H-fin tube, spiral fin tubes,marine boiler and different kinds of pressure vessels and so on.