pneumatically operated butterfly valves, and pneumatically operated valve actuators

'actuat':9 'butterfli':3 'oper':2,7 'pneumat':1,6 'valv':4,8

electrically operated metal butterfly valves, and electrically operated valve actuators

'actuat':10 'butterfli':4 'electr':1,7 'metal':3 'oper':2,8 'valv':5,9

manually operated metal butterfly valves, and manual metal valve operators; namely, handwheels and gearboxes

'butterfli':4 'gearbox':14 'handwheel':12 'manual':1,7 'metal':3,8 'name':11 'oper':2,10 'valv':5,9

BRAY

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