machines; namely, vibrating machines, tumblers, bell machines for chemically and/or mechanically working surfaces of workpieces and other articles

'and/or':10 'articl':18 'bell':6 'chemic':9 'machin':1,4,7 'mechan':11 'name':2 'surfac':13 'tumbler':5 'vibrat':3 'work':12 'workpiec':15

chemical agents for grinding, pickling, rustproofing and polishing metallic surfaces sold as final products in concentrate form or as additives

'addit':20 'agent':2 'chemic':1 'concentr':16 'final':13 'form':17 'grind':4 'metal':9 'pickl':5 'polish':8 'product':14 'rustproof':6 'sold':11 'surfac':10

TROWACHEM

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