Descriptors | Pressure gauges, Bourdon pressure gauges, Safety measures, Performance, Type testing, Acetylene, Oxygen, Design, Dimensions, Marking, Accuracy, Approval testing, Dials, Colour, Instrument scales, Screwed fittings, Performance testing, Mechanical testing, Pressure testing, Leak tests, Colour codes, Pressure measurement (fluids), Gas-welding equipment, Welding equipment, Thermal cutting equipment |