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The importance of erw pipe operation

By |2018-09-30T07:22:26+00:00December 7th, 2015|Construction, News|

Welding pressure is one of the main parameters of the welding process. After the two edges of the tube are heated to the welding temperature, common metal grains are formed under the action of the pressing force to form the welding with each other. Due to the possible tolerances of the erw tube