Hauj lwm lawm
Kev tsis
Los ntawm kev siv lub ntsuas peak flow meter, cov neeg mob tuaj yeem saib xyuas lawv cov mob hawb pob dhau sijhawm, muab sijhawm rau koj los kho cov tshuaj lossis siv lwm yam kev ntsuas ua ntej cov tsos mob hnyav dua. Peak flowmeter yog pab tau rau cov neeg laus thiab menyuam yaus hnub nyoog 5 xyoos.
Cim npe nrov: Peak flow meter, Suav teb, manufacturers, lwm tus neeg, Hoobkas, lag luam wholesale, pheej yig, luv nqi
