I bought two centrifuges, they gave me 100 falcons with the purchase but these don't close properly, they are 100 ml but I have to put 70 ml in so they don't spill, I was like that for several days but yesterday one of the machines smoked and smelled burnt, it was It spilled again and inside there are holes, I don't know why, which allow the liquid to fall into the electronics, I stopped it and I'm waiting for a technician to come check it since I'm in Venezuela and China, I have more than 3 months left. distance to send them for warranty