sulfur black br 240 online manufacture

CAS 1326-82-5 Sulfur Black BR 240 % strength Sulphur Black 1 Product Name: Sulfur black BR , Sulphur black BR , Sulphur Black 1 Molecular formula: C6H4N2O5 Quality standard: GB/T25808-2010 CAS No.:1326-82-5 ... Read More

Sulfur Black BR Strength 100 ~ 240% dyes for cotton , viscose , leather , paper Product Name: Sulfur black BR 100~240%, Sulphur black BR , Sulphur Black 1 Molecular formula: C6H4N2O5 Quality standard: GB/T25808... Read More

Sulfur Black BR 160 , 180 , 200 , 240 dyes for cotton , viscose , leather , paper Product Name: Sulfur black BR , Sulphur black BR , Sulphur Black 1 Molecular formula: C6H4N2O5 Quality standard: GB/T25808-2010 ... Read More