ALSHEHRI GROUP Heat Exchanger. We are pleased to announce here some of our successful projects, by the grace of God, regarding the supply, installation, Repair and Retubing of THE HEAT EXCHANGER: Shell and tube, Plate Heat Exchanger. We are proud of our customers' trust that we have built together since 2007 We thank all our valued customers. We look forward to maintaining our position as the best company specialized in supplying, manufacturing, installing, maintaining, and providing spare parts for all types of Heat Exchangers. Mohammad Alshehri Heat Exchanger.