Item: quick coupling Size: 1/2", 3/4", 1", 1-1/4", 1-1/2" Material: brass Processing Technique: Forging Item: quick couplingSize: 1/2", 3/4", 1", 1-1/4", 1-1/2"Material: brassProcessing Technique ... stability of the product quality. The products sell far to lots of Europe and America countries such as Germany, France, Denmark, Britain ...