High quality and safety
The needles are custom made from high quality 304L surgical steel and are flawlessly polished. Each needle is polished and has a smooth surface, which allows it to slide easily into the cartridge cartridge; The stroke of the needle is centralized, which eliminates the backlash – a disease of most cartridges.

Each cartridge is sterilized and individually packaged (disposable), which meets the requirements

*sharp
*With hard soldering
* With a quality membrane
* Universal input