Pindac LOL, the answer to your question should be obvious on the face of it. If I was interested in knowing the volume of each cartridge produced I would simply ask the question. But that it not the question that I asked, and the question that you did not answer.
You felt it necessary to note that the cartridge manufacturer was an OEM for several brands, but choose not to divulge them. I think it a fair question to ask where this information is coming from that they are an OEM for several brands in the above named countries. If you make a claim, you should be able to cite the source of the information.

