Bluestar (Hangzhou) Membrane Industries Co, Ltd, subsided to to the Global 500 enterprise China National Chemical corporation, BHM has absolutely mastered the core manufacturing technique of reverse osmosis (RO) membrane, nanofiltration(NF) membrane, and ultrafiltrarion(UF) membrane, BHM introduced an automatic dry membrane production line that can reach five million square meters per year, realized the fully upgrade of manufacturing technique and product performance.