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