Aastropure Systems Pvt. Ltd. Offers Reverse Osmosis Membrane System. Aastropure Systems Pvt. Ltd. Is an ISO 9001:2000 certified company. Reverse Osmosis Membrane System is used in water treatment, pharmaceutical industry, biotechnology, antibiotics, chemical industry, food, beverages industry, textile industry, dairy industry, metal and tanneries industries, paper and pulp industry.