copper pipe

Soldering Flux

Soldering Flux should be Applied only to the Male End of a Copper Pipe Joint By TK NG             Soldering flux is used to dissolve oxides present on copper pipe and fitting surface, facilitate wetting by molten solder, and coat the hot surface to form an oxygen barrier for preventing …

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New Addition 新增內容

An article titled "What is pi?" on how to find the value of pi has been added under the "Maths" tab in the "Sharing" page of this website.

一篇題為“What is pi?”關於如何找出 pi (圓周率)值的文章已新增至本網站“知識經驗分享”頁面的“數學”選項卡內。