100mm stainless steel cover brass direct bottom CE standard capsule pressure gauge
100mm negative and pressure capsule structure zero adjustable device type small pressure manometer
100mm kpa scale low pressure C-type bourdon tube level diaphragm sheet oil filled pressure gauge
100mm all stainless steel direct bottom liquid type high accuracy diaphragm seal piezometer
4.5”Phenolic aldehyde case hydraulic oil with adjustment pointer safety type pressure gauge
100mm blue steel case bourdon type R12 R22 R134A R410A color background dial freon pressure manometer
100mm special red steel case cheap type single tube freon pressure manometer
100mm high and low pressure set type normal thread connection manometer set
40mm center back with clamp standard brass G thread type freon air pressure gauge piezometer
60mm liquid filled type axial mount front flange stable quality general refrigeration manometer
60mm high pressure&low pressure center back with steel flange refrigerant pressure gauge
60mm grey steel case inner stainless steel level ammonia use pressure gauges
100mm multi scale indication dial pointer type stainless steel connection industrial use ammonia met
40mm handheld common use for all kinks balls precision pressure gauge recorder
100mm general mpa scale color dial no oil type oxygen pressure gauge manufacturer