Question: which German 88 mm anti-aircraft and anti-tank artillery  was produced by  Spreewerk 
Sentence (from "Spreewerk"): Spreewerk produced a number of important weapons and components before and during World War II including 280,880 of the Walther P.38 pistol which was the standard service pistol of the German "Heer", and the famous 8.8 cm Flak anti-aircraft gun.
Relevant evidence: Yes