I would have to say the red ignition wire separators are plastic, and the hose separators look to be aluminum, but I do know where to get the plastic ones that match the ignition type ones. If I get a chance today or tomorrow I will drop by the place and see if there is a brand name.
Those wire separators looks like they're from Taylor and they're nylon, the hose clamps come from a AN supplier, most of them carry those!..