Guillemin coupling: 1.Material : Aluminimum 2.name:Female with Latch 3.Size: DN40 DN50 DN65 DN 80 DN100 Guillemin coupling:1.Name:Female with Latch2.Material: Aluminium3.Thread:BSP4.Size: DN40 DN50 DN65 DN 80 DN1005.Gasket: NBR6.working pressure: 16bar/230psi7.casting technique:gravity casting8.Aplication:military, oil, colliery, fire control, chemical, industry,agriculture and other fields.