Lanzhou Huifeng Petrochemical Co.,Ltd., founded in August,1998,is a share-issuing enterprise whose holding company is China National Petroleum Corporation Lanzhou Chemical Industry Co.,Ltd..We have 566 employees , including 29 intermediate and senior engineering staff,and 10 secondary units including three branch factories,two subsidiary companies,"four-part one office" departments We are an entity that mainly produces and sells .petroleum resin,petroleum solvent, chemical material and concurrently sells plastic process,architecture fixing,equipme...