"說開發，生產，銷售這個產品得花多少錢"

Do you know anything about how Chinese companies operate? I bet they spent no money at all on R&D because they could just steal someone's intellectual property. Do you think a company that is too cheap to hire a decent English translator will actually spend money on research? So i think this is just an overall "Shan Zhai" company, so I wouldn't complain about the poorly worded manual.