| 摘要 |
PROBLEM TO BE SOLVED: To provide a safety protective cap for a gas cylinder free from the possibility of the protective cap getting loose and coming off the gas cylinder during the movement of the gas cylinder. SOLUTION: This protective cap A for the gas cylinder protects a valve part C provided at the upper part of the gas cylinder B charged with high pressure gas. In the protective cap A, a disc-like holding part 3 is rotatably provided at the upper part of a cap body 1.
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