Rigid metal pipes for oil hydraulics; junction and connection connectors of metal

'connect':9 'connector':10 'hydraul':6 'junction':7 'metal':2,12 'oil':5 'pipe':3 'rigid':1

Pipe fittings in the nature of rings of rubber for use as pipe connection seals for hydraulic and pneumatic plants, [ oil and air quick couplings for pipes composed of rubber, ] flexible pipes made of rubber for use in hydraulic liquid power connection and transmission

'air':23 'compos':28 'connect':14,42 'coupl':25 'fit':2 'flexibl':31 'hydraul':17,39 'liquid':40 'made':33 'natur':5 'oil':21 'pipe':1,13,27,32 'plant':20 'pneumat':19 'power':41 'quick':24 'ring':7 'rubber':9,30,35 'seal':15 'transmiss':44 'use':11,37

[ Hydraulic pumps, electric gear motors for machines, and machine parts in the nature of cylinders ]

'cylind':15 'electr':3 'gear':4 'hydraul':1 'machin':7,9 'motor':5 'natur':13 'part':10 'pump':2

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