Made with iron nickel plating, it has good wear resistance and corrosions resistance The simple plug-in structure allows users to quickly connecting with just a gentle push Pneumatic systems suitable for multiple fields such as workshops, factories, and households, such as sprays, pneumatic tools, and pneumatic conveying None tools required to connecting or disconnect these two part connectors This quickly fitting are used for hose compressor industrial automatic apparatus, Manufacturer: XINGBEI