Complex sentence: René 41 is a nickel-based high temperature alloy developed by General Electric which retains high strength in the 1200/1800 ° F (649/982 ° C) temperature range.
Split into simpler sentences: René 41 is a nickel-based high temperature alloy developed by General Electric. It retains high strength in the 1200/1800 ° F (649/982 ° C) temperature range.