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pigments with high stability, which belong to the series of 1, 4.dicheto small - (3,4 - (c) - pirroli and new small - (3,4 - (c) - pirroli fit for purpose
pigments with high stability, which belong to the series of 1, 4.dicheto small - (3,4 - (c) - pirroli and new small - (3,4 - (c) - pirroli fit for purpose