Universal Air Hose Coupling-b

We are offering universal air hose coupling-b. 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