Isro's 12 PSLV first-stage S139 motors to be ready by the end of 2019 Posted By: Unknown November 29, 2018 Leave a Reply Solid propulsion plays an important role in launch vehicle technology from Latest News https://ift.tt/2PcW2lq https://ift.tt/eA8V8J https://ift.tt/2LUVdkd Tweet Share Share Share Share
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