We are professional to supply various type of Normalkupplung or Drehkupplung .                 All gerüstkupplung are strictly produced and inspected according EN74-1: 2005 Class B & BB standard.                                              1) Dia: 34mm, 42mm, 48.3mm, 51mm, 60mm, 63mm, 76mm, 89mm, etc.                    2) Surface Finish: Self Coupler, Electric Galv., Hot DIP Galv.                    3) Other sizes or design upon your request.                                                            Providing OEM service, welcome your inquiry any time!