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Dyes Sulphur Black Br 522 Sulphur Black Br Sulphur Black 1. High Strength Options: Available in 160%, 180%, 200%, 220%, and 240% strength levels. Versatile Application: Suitable for dyeing cotton, cambric, viscose, and vinylon fabrics. Standard Quality: Meets GB/T20880-2007 Food Grade, FCC VII, and Bp2012 standards. Consistent Color: Color matches the standard black shade with granular appearance. Low Moisture Content: Moisture content is strictly controlled to less than 2.9%. Flexible Packaging: Available in 25kg bags or drums for various shipping needs. Global Export Capability: Products exported to Asia, Europe, Americas, Africa, and Middle East.