Dalian Richfortune Chemical Company

Richfortune Chem： A Global Leader in Specialty Additives, Intermediates and Heat Transfer Fluids In 1992, we firstly developed tried to produce Optical Brightener OB.  In 1995, started manufacture 2,5-thiophenedicarboxylic acid(also called OB acid) other kinds Brighteners( ...

Telephone：86-41184820922Address：12A-11 Yangguang Shuma Building, 596 Huang Pu Road, DaLian, Liaoning 116023, P.R. China, Dalian, Liaoning, China