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Soldering Techniques for Lead Pipes by ScribdTranslations is a document available to read on EtoBox.

To weld lead and copper tubes: 1. The edges of the tubes are cleaned and prepared with tools such as reamers and sandpaper. 2. Stearin is applied as a flux to facilitate adhesion, and the copper tube is inserted into the lead. 3. It is lightly heated with a torch and soldered with a lead-tin rod or copper wire, pressing to join them.

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