| 摘要 |
The flexible section (12) of the water drain pipe (8) is made of both soft and hard material. The water drain pipe is formed from a hard synthetic material by injection moulding, and a softer synthetic material, such as rubber, is injection moulded with it for forming the flexible section. The flexible section consists of a sleeve-form section (13) which is broken by two radially opposite ribs (14) made of the harder material of the remaining section of the pipe.
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