a man's hand in a white glove turns on a set with a pressure gauge for testing high pressure hydraulic hoses.

39aph39 bar calibration compressor connection control detector device dial engineering equipment factory fitting for gauge glove hand heavy high hose hoses hydraulic indicator industrial industry instrument job joint machine man manometer manufacture measurement mechanic metal pipe pneumatic power pressure process production pump s safety sensor set station system technical technology test testing tool tube turns uniform valva white work workshop