Water-purifying chemical; propping agent for oil or gas mining and fracturing, namely, chemical additives for fracturing fluid for use in oil and gas wells; oil-separating chemicals; industrial chemicals; foundry molding preparations, namely, chemical additives for foundry molding; foundry sand; chemical additives for oil or gas mining and fracturing, curing agent, namely, chemical compounds for curing concrete; adhesives for industrial purposes

'addit':16,38,45 'adhes':61 'agent':6,54 'chemic':4,15,30,32,37,44,56 'compound':57 'concret':60 'cure':53,59 'fluid':19 'foundri':33,40,42 'fractur':13,18,52 'gas':10,25,49 'industri':31,63 'mine':11,50 'mold':34,41 'name':14,36,55 'oil':8,23,28,47 'oil-separ':27 'prepar':35 'prop':5 'purifi':3 'purpos':64 'sand':43 'separ':29 'use':21 'water':2 'water-purifi':1 'well':26

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