I. Filters 1. Shell and tube back-flush filter 2. Self-cleaning cartridge filter 3. Scraper filter 4.Auto-pulse pocket filter 5. High efficiency fiber ball filter 6. Automatic back-flush fiber filter 7. Carbon filter 8. Gas filter 9. Fuel filter 10. Mother liquid filter 11. Rigid filter 12. Lean/fat solution filter 13. Membrane filtration system 14. Other filters Multistage filter Liquid expeller Water filter Sand filter Desiccator Medium filter Pipe strainer Aviation kerosene filter Coarse filter Flue gas dust remover Precision filter Flue gas denitrifying filter Air purifier Flue gas desulfurizer The four filters for cars (motor oil , petrol, air filters and the purifying filter ) Filters for ships(diesel, gas, oil and water filters ) Natural gas filter Medicine filters Drinks cleaning filter Basket filter II. Coalescers/ Demister III. Vapor recovery 1. Vapor recovery at gasoline dispensing facilities 2. Vapor recovery on the loading platform at bulk storages IV. Exhaust gas treatment 1. Organic torch gas recovery system 2. Recovery systems for recovering hydrogen from tail gas 3. Recovery of Hydrogen Gas from synthetic ammonia relief gas 4. Recovery of hydrogen from refinery gases and petrochemical industrial gas 5. Recovery of hydrogen from methanol relief gas 6. Hydrogen recovery in hydrogen plants 7. Hydrogen recovery from coke oven gas 8. Smoke dedust, desulfurization and denitrification system 9. Organic gas separation system for mixed gas V.Gas cleaning VI.Gas purification VII. Dewatering devices VIII. Wastewater treatment IX.All types of filter elements