381519100000
HS 381519100000 - Reinforced catalysts; particle size <=10 micrometers, 20%<=copper<=35%, 2%<=bismuth<=3%, 0.2<=specific gravity<=1
Reinforced catalysts; particle size <=10 micrometers, 20%<=copper<=35%, 2%<=bismuth<=3%, 0.2<=specific gravity<=1
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