Pressure relief devices, namely, rupture discs made primarily of metal

'devic':3 'disc':6 'made':7 'metal':10 'name':4 'pressur':1 'primarili':8 'relief':2 'ruptur':5

Rupture discs for controlling, monitoring and protecting against high and low pressure and vacuum conditions, not being parts of machines

'condit':15 'control':4 'disc':2 'high':9 'low':11 'machin':20 'monitor':5 'part':18 'pressur':12 'protect':7 'ruptur':1 'vacuum':14

Parts of machines for discharging explosive pressure, in particular rupture discs

'disc':11 'discharg':5 'explos':6 'machin':3 'part':1 'particular':9 'pressur':7 'ruptur':10

CPX

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