
ChangZengis in a leading position in the world in the field of study and production technique of steel tubing. ChangZeng's steel beam series include multiple types. The variety of steel sheet design sells well all over the world. It is able to provide the strength nor piping connectivity typically required by high-pressure, high-temperature applications. Since its establishment, ChangZenghas won praises from many users. It is not subject to yield-point runout and can, therefore, require low levels of maintenance.

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