| 摘要 |
PROBLEM TO BE SOLVED: To provide a tip cleaner optimal for prolonging the lifetime of the tip of an oxygen welder. SOLUTION: The tip cleaner comprises a set of (1) a hexangular rod-like tip cleaner having pointed forward end for cleaning the central hole of the tip, and (2) a tip cleaner of a tube (2a) provided with a forward end cutter (2b) and a side face cutter (2c) for cleaning the outer circumferential hole of the tip.
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