Shijiazhuang Prolen Import & Export Co., Ltd. is an leading manufacturer of dyes. Its main products are direct dyes, acid dyes and sulfur dyes which extensively used in woolen, cotton textile, papermaking , leather producing and other related industries. Meanwhile, we also provide corresponding water treatment chemicals and basic chemical materials which sell to all around the world. After the development of the passing years, Shijiazhuang Prolen Import & Export Co., Ltd. has owned two productive factories and has many joint stock system factories. On the basis of equality and mutual benefit , we will make every effort to meet your needs and make sure that your requirements will be satisfied as soon as possible.