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Name: Puyang Long de Young New Material Co., Ltd. 
Add: Three Road South East of Dingsheng Road, Puyang Industrial Park. 
Contact: Zhang Yangchen +86-15936761888 
Adam Zhao +86 18961140219
Tel: +86-393-3267711 
Fax: +86-393-3267711

Puyang LongDeYoung New Material Co., Ltd.

The main product is pyromellitic anhydride,
The chemical name is 12,4,5 benzoic dianhydride, referred to as PMDA