1.揚聲器，PA喇叭，PA系統車用，船用喇叭　2.水管水槍，灑水器，接頭, 3. 木工刀具, 4. TCT鑽頭

1.Horn/Siren, PA Speaker, PA System, Pendant Speaker, Marine Speaker 2.Hose, Spray Gun, Sprinkler Connector, 3. Woodworking Cutting Tool, 4. TCT End Mills