分享簡介uPVC膠喉及配件 Introduction of uPVC Pipe and Fittings
8:26
分享做地盤必做的工作 Essential Tasks Every Construction Site Must Have
11:13
分享如何定食水喉尺寸 How to Choose Your Plumbing Size
9:42
分享如何設計上水泵（1） How to Design Upfeed Pump（1）
8:29
不同種類水喉的保溫 Different Type of Insulation for Plumbing and Drainage Pipe
12:43
某茶成日乃野，高人出手便知有沒有
8:17
膠喉管安裝基礎1-切割篇UPVC膠喉接駁How To Cut UPVC Pipe
8:47
分享簡介5種排水系統｜Introduction for 5 Types of Drainage System
7:47