1.Pipe fitting / strut clamp 2.Material: steel or Aluminium,bushing-zinc 3.Standard: ... :from 1/2" to 2" EMT Pipe fitting / EMT coupling / Strut Clamp1.Material:Steel or Aluminium also ok, bushing-Zinc 2 ... sample,including size,appearance, material,with your logo,etc. steel Strut Clamp / pipe clamp