. Compliant with Q/CAB004, JISZ8721, JIST7101-2014. 2.100% airtightness test. 3.10000 insertions and removals without any malfunctions. 4. Use ISO32 and GB7144 color standards to identify gases. 5. Use different positioning degrees to distinguish different gases. 6. The connection methods can be divided into ball caps, welding, card sleeves, lock sleeves, etc, 7. Connectors of the same specification can be interchanged, and the height of the socket is manufactured according to the height of the equipment. 8.The maximum working pressure is 0.75MPA.