Pressure regulators for controlling fluid flow rates; automatic pressure relief valves, automatic safety valves; automatic control valves; instrument devices, namely pressure gauges used for measuring, indicating, controlling, recording or testing, and calibrating temperature, pressure, humidity, vibration, and shock; surge relievers for oil pipeline services

'automat':8,12,15 'calibr':32 'control':4,16,27 'devic':19 'flow':6 'fluid':5 'gaug':22 'humid':35 'indic':26 'instrument':18 'measur':25 'name':20 'oil':42 'pipelin':43 'pressur':1,9,21,34 'rate':7 'record':28 'regul':2 'relief':10 'reliev':40 'safeti':13 'servic':44 'shock':38 'surg':39 'temperatur':33 'test':30 'use':23 'valv':11,14,17 'vibrat':36

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