Tapping machines and electric drills used to cut an access in a pipe; hydraulic and pneumatic cutting and drilling machines used to cut an access in a pipe

'access':10,25 'cut':8,17,23 'drill':5,19 'electr':4 'hydraul':14 'machin':2,20 'pipe':13,28 'pneumat':16 'tap':1 'use':6,21

Manually operated metal valves and manually operated metal line-stopping valves not being parts of machines which stop the flow of water or gas in water pipes, gas pipes, and petro-chemical pipes used for industrial purposes; valve systems comprised of manually operated metal valves

'chemic':34 'compris':42 'flow':21 'gas':25,29 'industri':38 'line':10 'line-stop':9 'machin':17 'manual':1,6,44 'metal':3,8,46 'oper':2,7,45 'part':15 'petro':33 'petro-chem':32 'pipe':28,30,35 'purpos':39 'stop':11,19 'system':41 'use':36 'valv':4,12,40,47 'water':23,27

EZ 2

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