It is suggested to use the galvanized pipe bender, and the thickness of galvanized pipe should be between 1.0- 1.5mm, and the galvanized pipe should be bent naturally by hand directly.

The operation steps of galvanized threading pipe bender are as follows:

In order to improve the corrosion resistance of steel pipes, ordinary steel pipes are galvanized. Galvanized steel pipes are divided into two types: hot dip galvanizing and electro-galvanizing. Hot-dip galvanized coating is thick, low in cost and not smooth in surface. Oxygen-blown welded pipe: used as oxygen-blown pipe for steelmaking, generally with smaller diameter? Welded steel pipe, with specifications ranging from 3/8 inch to 2 inch. It is made of 08, 10, 15, 20 or 195-Q235 steel strips, some of which need effective aluminum plating to prevent corrosion.

Galvanized pipes are mostly used in old houses. Now the iron pipes for gas and heating are also galvanized pipes. After several years of use, galvanized pipes produce a lot of rust scale in the pipes. The yellow water flowing out not only pollutes sanitary ware, but also is mixed with bacteria bred on the unsmooth inner wall. Due to corrosion, the content of heavy metals in water is too high, which seriously harms human health. In 1960s and 1970s, developed countries began to develop new pipes and gradually banned galvanized pipes.

China Ministry of Construction and other four ministries and commissions also issued a document explicitly prohibiting galvanized pipes from 2000. At present, galvanized pipes are rarely used for cold water pipes in newly-built residential areas, and galvanized pipes are used for hot water pipes in some residential areas.