DoubleHorse.com
Methyl tetrahydrophthalic anhydride (MTHPA, CAS No.11070-44-3,19438-64-3),Methyl hexahydrophthalic anhydride (MHHPA, CAS No.19438-60-9,25550-51-0),APG epoxy resin,Anhydride curing agents,Jiaxing Qingyang Chemical Co., Ltd. ,Heze Qingyang Chemical Co., Ltd,Pinghu Double Horse Fine Chemical Co., Ltd
