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Product Description

*Prevent unauthorized operation of the main gas cylinder valve.

*Needless to require that the various diameters and threads of the lock and the gas cylinder cover completely match with each other

*Suitable for neck rings with a diameter of 8.9cm at the max.

*Installation can be finished in a few seconds,the LOTO procedure can be finished easily and quickly

*Suitable for 0.8cm - 4.5cm valves.