Introduction
專業技能包括水喉問題、渠務淤塞
臭味源頭、水路設計
木門玻璃門地鉸門開關問題及維修調教
冷氣機檢查及維修保養不能盡綠
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| Building Type | Public housing estate、Home Ownership Scheme (HOS) estate、Private housing estate、Tenement building、Western-style house、Village house、Villa、Shop/Commercial building、Industrial building、Others |
| Pipeline type | Main pipe、Branch pipe |