Aluminum Guillemin Coupling,guillemin coupling, Male without latch Size:11/2"-4"(Dn40-Dn100) European EN14420-8/NF E29-575 Aluminum Guillemin Coupling,Male without latch,guillemin couplingSpecifications:1.Technical Standard :European EN14420-8/NF E29-5752.Working Pressure :16 bar/230psi3.Material(coupling body):Aluminum(heat thread T6)4.Thread:EN ISO 228-1,BSP(male thread or female thread)5. ...