... ,Wangda Chemical founded in 2001 locates in PuYang City of Henan Province , the northern China. Relying on advanced technology, ... have evolved to meet the increasing demands and requirements of our customers. We supply Dipentaerythritol, Mono-pentaerythritol, Methyl ... Cellulose,Petroleum Hydrocarbon Resin,Cyanuramide ,etc for lots of companies domestically and overseas.Wangda passed ISO 9001:2000 ...