Machine tools for use in the oil, gas and energy industries, namely, a rotating and reciprocating cement head used in well cementing applications whereby the casing, cleaning, plugs can be deployed without stopping movement, thereby limiting tubular friction during cementing

'applic':23 'case':26 'cement':17,22,40 'clean':27 'deploy':31 'energi':10 'friction':38 'gas':8 'head':18 'industri':11 'limit':36 'machin':1 'movement':34 'name':12 'oil':7 'plug':28 'reciproc':16 'rotat':14 'stop':33 'therebi':35 'tool':2 'tubular':37 'use':4,19 'well':21 'wherebi':24 'without':32

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