The self-sealing device is made of environmentally friendly brass and high-strength waterproof polymer. The sealing ring is made of medical silicone rubber. Different gases use different gas connectors. It has the function of preventing misplugging and unplugging. It is easy to install and can be fixed on the equipment belt or wall for easy maintenance. Reliable and durable. Different gases use different color codes, which are beautiful and easy to identify. The appearance is exquisite and practical. Test pressure and use pressure.
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