... other different pressure range. 4.Glass or plastic 1.5"molded case plastic surface pressure gauge Specifications can be made per ... erode steel and copper alloy. 2.Heating ,air-conditioning technology, pneumatics,air compressor, vacuum pump, pressure air regulating, ... , black Φ160 Steel, blackDesign for window:snap on plastic(for plastic case ), screw in polycarbonatesteel, steel black bezel(two screws ...