Luftwaffe and Allied Air Forces Discussion Forum

It would be interesting to know to what degree Land Lease transformed Soviet economy during the war. We do know the number of aircrafts , tanks, trucks, quantities of aviation fuel, tires, boots, ships , radio sets, radars and many other items(finished products) delivered to the Soviet Union. But it is much less known the contribution of various ingredients which greatly improved the productive capacity of Soviet industry ( tungsten for AP shells, molybdenum for armor, factories equipment , oil refineries) which nominally was attributed to ingenious Soviet production but in reality was a direct result of Land Lease assistance.
I appreciate any suggestion or help.