Hangzhou Fenjun Chemical Co Ltd.
Country: China (Mainland)
Business Type: Trading Company
3,3', 4,4'- - diphenylketotetra dianhydride (BTDA)CAS NO.: 2421-28-5
4,4'-bis (4-aminophenoxy) biphenyl (BAPB)CAS NO.: 13080-85-8
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