... and spare parts,like delivery pipe,elbow,coupling,fitting schwing high pressure rubber hoseThis is the brief introduction of our products: we ... . pipe line(wear-resistant seamless or welded tube)material:45Mn2,high quality alloy steel pipe,st52,20#steel,etcsize:DN 125mm ... We can also supply the s-pipe,gate valve,delivery cylinder,RAM,back-up ring,etc.9. Concrete spreader We can ...