1.Product name: Universal air hose coupling or king air coupling

2.Material of universal air hose coupling: Malleable Iron, etc

3.Sizes of universal air hose coupling: From 3/8" to 1"

4.Packages of universal air hose coupling: Carton box

5.Zinc plated of universal air hose coupling: white zinc & Golden zinc

6.Production methond of universal air hose coupling: Casting