Huai'an Zhenda cylinder pipe chemical content -mechanical requirement.Zhenda Steel Pipe use the continual casted round billet manufactured.With reasonable designed chemical content and well
controlled deviation.Average weight and tolerance:Process of multiply cold-draw after hot rolling ensured the precision of
the pipe dimension,especially the wall thickness.Suitable for the production of small lots variant pipe,especially for middle or small thickness pipe.Our process ensure a smooth surface,more clean,no grinding required for neither internal or external surface.