BeiHai Huihuang Langjie Environmental Protection Technology Co,LTD. has strong capacity of R&D,grasp many car exhaust diesel engine (gas engine) exhaust handling the core technology ?Among them the CNG engine three-way catalytic converter was awarded a project ministry of science and technology innovation fund in 2008. LPG car tail gas purifier wonthe ministry of science and technology innovation fund a project in 2010 ,and LPG car tail gas purifier (Euro IV,V) industrialization demonstration project.And was awarded a torch project ministry of science and technology project in 2011.Our company successfully developed SCR car exhaust catalyst in 2011,we are the first domestic manufacturers which successfully develop and produce large diameter SCR catalysts,has filled the gaps production blank in the domestic . The Honeycomb substrates produced by our company can deal with the harmful exhaust including CO, C12, SO2,H2S, NOx effectively. Products for exhaust dealing, rubbish clearing and thermal storage system like Honeycomb ceramics for both vehicle and energy conservation using are leading the Environmental Protecting field in China.