Repair, maintenance and replacement of heat exchangers and heat exchanger parts

'exchang':7,10 'heat':6,9 'mainten':2 'part':11 'repair':1 'replac':4

Heat exchangers not being parts of machines, comprising convectors and convection sections, fuel economizers, extended surface heat exchanger coils, hold-over truck plates, solar absorbent panels, and vapor-to-liquid or liquid-to-liquid heat transfer units

'absorb':26 'coil':19 'compris':8 'convect':11 'convector':9 'econom':14 'exchang':2,18 'extend':15 'fuel':13 'heat':1,17,38 'hold':21 'hold-ov':20 'liquid':32,35,37 'liquid-to-liquid':34 'machin':7 'panel':27 'part':5 'plate':24 'section':12 'solar':25 'surfac':16 'transfer':39 'truck':23 'unit':40 'vapor':30 'vapor-to-liquid':29

Design, testing and quality control inspection of new products of others, namely, heat exchangers and heat exchanger parts

'control':5 'design':1 'exchang':14,17 'heat':13,16 'inspect':6 'name':12 'new':8 'other':11 'part':18 'product':9 'qualiti':4 'test':2

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