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Mbs Y Series Grinding Ball Mill For Sal

Pigments black perylene containing one of the isomers of formulas ia or ib in which the variables have the following meanings r 1, r 2 are each independently phenylene, naphthylene or pyridylene, which may in each case be substituted one or polysubstituted by c1-c12 alkyl, c1-c6 alkoxy, hydroxy, nitro and or halogen x is halogen n is 0 to 4, or contain a mixture of both isomers and enamel.

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