Yancheng Hongyan Chemical Co., Ltd.
PROCUREMENT
Procurement

ITEM

QUALITY STANDARD

Phthalic anhydride

99.5%min

4-Chlorophenol

99.5%min

Orthoboric acid

99.5%min

Sulfuric acid

104.5

Sodium hydrosulfite

85%min

m-Phenylenediamine

99.5%min

Phenol

99.5%

Chlorosulfonic acid

 

Contact: Zhao Hongli    MT: +86-13851194660
Contact: Liu Ping           MT:+86-13912544959
Tel: +86-515-86735928

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