... quality and most cost-effective 3.advanced system diving air compressorI.Technical Parameters ModelWorking pressure (Mpa) ... to meet the demands of diving operations, salvage, fishing, aquaculture, sediments salvage underwater engineering, water parks, shipbuilding ... 12 months. 15-30Mpa Scuba Diving Air Compressor for Diving Operations,Salvage,Fishing,Aquaculture,Sediments Salvage Underwater