How to choose dispensing needle and syringe correctly (part one)

Teflon needle is a kind of punctual glue needle, which is mainly used to dispense some quick-drying glue, such as 502 glue. The biggest difference between Teflon needle and other needles is that there is a layer of Teflon material in the needle tube, which can also prevent scratching the workbench. The price is not expensive either, ranging from a few cents to a piece. I bought it before. I always bought it from Shenzhen Ouyana Electronic Equipment. It is very convenient to buy it online. I hope I can help you.