We offer Coupling.Cast Pipe Clamp, Forged Pipe Clamp.Item:Coupling & Rubber GasketMaterial:40Cr, 45#steel etc.Specification:4.5, 5.5 snap clamp.etc.Technology:Forged or Precision Casting.Surface:Painted or Galvanized.Working Pressure:85BarApplication:Putzmeister, Schwing, Cifa, Sany, Zommlion etc.A variety of specifications.we can product other specifications to the needs of customer.