Han Patriot
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One test tube is 6rmb, and that's for 10 ppl per test tube. So it's 60 cents rmb for every 3 days. So in a month there is 10 x 0.1 us cents x 25 million. So it's 25 million usd per month in Shanghai, but we have to take into wastage so let's make it double, so it's 50mil usd per month for the population of shanghai.