DF350A yahinduwe Diphenyl EtherImyenda y'Ibirahure Rigid Urupapuroigizwe nigitambara cyibirahure kiboheye hamwe na diphenyl ether yahinduwe ya resinosetting resin, yandujwe nubushyuhe bwinshi nigitutu. Imyenda y'ibirahuri iboshye igomba kuba idafite alkali kandi ikavurwa na KH560. Icyiciro cyubushyuhe nicyiciro cya H.