Bismark brown R Certificate: ISO9001:2000,ISO14000:2004.Market in Southeast Asia, America and Europe.Used in textile industry. Bismark brown RUsed in textile industry, such as silk, wool, cotton, leather, paper, bamboo and so on. CONTACT INFO:DALIAN RICHON CHEM.,CO LTDTEL:0086-411-82507336FAX:0086-411-82507318 Bismark brown R