| 摘要 |
Flow water reducer of toilet water flush unit is a device that is installed on toilet water tank to restrict the downward movement of the push handler of toilet water flush unit to a degree to allow flapper tank ball elevate only about one to one and a half inches high to drain small amount of water into toilet to flush liquid human waste. Therefore a large amount of water can be saved to relieve the shortage of water supply in big cities in the States.
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