Rigid pipes, not of metal for building purposes; pipework, not of metal

'build':7 'metal':5,12 'pipe':2 'pipework':9 'purpos':8 'rigid':1

Pipes and junctions for pipes for heating or cooling installations; heating installations; cooling installations, namely, chilled ceiling systems

'ceil':17 'chill':16 'cool':9,13 'heat':7,11 'instal':10,12,14 'junction':3 'name':15 'pipe':1,5 'system':18

Junctions, not of metal, for pipes, namely, plastic pipes; pipe muffs, not of metal for use with plastic pipes and composition pipes

'composit':21 'junction':1 'metal':4,14 'muff':11 'name':7 'pipe':6,9,10,19,22 'plastic':8,18 'use':16

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