Tianjin Ducens Import & Export Co, Ltd, ab 1997. Profitialis in fabricando et educendo dyestufforum et oeconomorum affinium. Sana et perfecta ratio productionis, R&D, venalicium, logistics, et technicae artis firmamentum. Bona fama plus quam XX in terris.Annua productio voluminis3000mt Metanil flavum, Acidum aurantiacum II,etRecta rubra RN.Una summo exportatoresSulphur nigrum BR, Sulphur coloreex Sinis.