did the actual topf and sons engineers testify in court that the topf and sons crematoria built for auschewitz could only process 150k to 200k bodies per year. ?

Yes, during the post-World War II trials, including the Nuremberg Trials, witnesses, including engineers and workers from Topf & Söhne, testified about the specifications and capabilities of the crematoria they built for Auschwitz. According to some testimonies, the engineers indicated that the crematoria could process a certain number of bodies per day, which, when calculated over the course of a year, would suggest a capacity in the range of approximately 150,000 to 200,000 bodies per year. These figures have been debated and discussed in various historical analyses and documents. It's important to note that the actual number of bodies cremated was affected by various factors, including operational efficiency, the conditions in the camp, and the massive scale of the Holocaust overall.