| 摘要 |
A drain cleaner includes a casing having a tube engaged with an opening in the first end of the casing and the tube has a shrink opening on a top surface thereof. A high pressure can is received in the casing and includes a valve which is located in alignment with the shrink opening of the tube. A rod movably extends through a second end of the casing so as to push the can to let the valve be activated by the shrink opening and a high pressure is generated through the tube.
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