Desc:Product DescriptionDuctile iron pipe is a pipe made of 18 or more foundry iron by adding ductile agent and then cast by centrifugal ductile iron machi...
Desc:Product Description.Zhengde API pipeline steel pipe is a pipeline pipe belonging to the American Petroleum Standard. The pipeline pipe is used to tran...
Desc:Product Description.Zhengde API pipeline steel pipe is a pipeline pipe belonging to the American Petroleum Standard. The pipeline pipe is used to tran...