Acid Orange 7 Certificate: ISO9001:2000,ISO14000:2004.Market in Southeast Asia, America and Europe.Used in textile industry. Acid Orange 7IS used in textile industry, such as silk, wool, nylon, leather, ink, paper, soap and so on. COMPANY INFO:DALIAN RICHON CHEM CO.,LTDTEL:0086-411-82507336FAX:0083-411-82507318