| 摘要 |
The system to inject a liquid soap into a shower water supply has a PVC soap container (1) at an injection unit (2) with a push button (8) and two non-return valves (12, 14). A flexible joint (3) connects the shower and injection system to a non-return Italy (RTM) valve (4) with a flexible link (5) for the mixer non-return valve. The upper non-return valve (12) has a PVC long stem washer. The assembly has a PVC housing.
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