... different requirment. Material: alluminum alloy pole or stainless steel pole RT-1 Base with powder-coated steel, stainless steel poleRT-2 ... with ABS plastic, stainless steel pole RT-5 Base with ABS plastic, aluminum alloy pole RT-6 Ambulance stand Circular”Ram Horn ... : 90cmRT-7 Base with powder-coated steel,, aluminum alloy poleRT-8 Base with aluminum alloy, aluminum alloy pole I.V. Stand ...