Snap clamp is mainly applied to concrete pump pipe connection, product type: DN125 DN100 DN80 NameConcrete pump clamp couplingsSize3.5inch,4inch ,5 inchMaterialHi-Mn ... or GalvanizingServing brandSchwing, PM, CIFA, Sany, Zoomlion, etc1,Concrete pump pipe :ST52 concrete pump pipe , 45Mn2 Wear-resistant pipes, Twin wall pipes ,Reducer , tee ...