| 摘要 |
PROBLEM TO BE SOLVED: To provide a water tank equipped with a drainage appliance capable of simply carrying out exchange of sewage water in a water tank, discharge of sludge-waste, etc. and cleaning of the interior of the water tank. SOLUTION: The water tank equipped with drainage appliance is obtained by attaching a drainage appliance to the lower part of a water tank, The water tank facilitates exchange of sewage water and discharge of sludge-waste and enables simple cleaning of the interior of the water tank. COPYRIGHT: (C)2009,JPO&INPIT
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