Zhejiang Changsheng Oil Filters Co.,Ltd,which is a large enterprise specially develops,manufactures and sells a series of filters with changsheng as its registered trademark.Changsheng is located at Dongshan industrial zone of Ruian city.our factory was established in 1993,spend $50 million to construction of new plant in 2008.The total area is about 15000 square meters,construction area is 25000 square meters,own 300 employees.Our company has frequently won the titles of Excellent Enterprise since it was estabished,and passed ISO9001 and AAA in December,1999.For many years development,Changsheng have developed all kinds of top-qualified air filters, oil-water separators,diesel fuel,cooling wanter,oil filter in bus,car,truck,engineering machine and generating machine and generating set with over 500 specifications.Because of its stable quality and competitive price,the series of filters produced with changsheng,CS and CAV brand were deeply favored by customers all over the world.