Heze Yongsheng Chemical Co., Ltd, is a specializing in the production of MTHPA(Methyl Tetrahydropthalic Anhydride), 4,4'-Methylenedianiline and one bigger export enterprises.The company located day east high-speed, high-speed rizhao-heze, ...

Jiaxing Nanyang Wanshixing chemical co., LTD., is located in Zhapu port zone, Zhejiang,China, with a floor area of 20 mu, currently has four production line Methyl tetrahydrophthalic anhydride, the annual capacity 30000 tons, second subsidiary zhejiang ...