... parts,like delivery pipe,elbow,coupling,fitting schwing high pressure rubber hoseThis is the brief introduction of our ... -resistant seamless or welded tube)material:45Mn2,high quality alloy steel pipe,st52,20#steel,etcsize ... length,other length as to your requeirement. 2. elbow/bend and reducer elbowmaterial:Hi-Mn13, ... /clampmaterial:Hi-Mn13,20#steel,etcsize:from 2 to 6inch,DN125mm and DN 150mm is the ...