Ibyo dukora byose birafitanye isano na tenet yacu "umuguzi gutangirana, kwizera gutangirira, kwiyegurira ibiryo hamwe no kwirwanaho ibidukikije kumuringa (II),Umuringa (II) icyicaro cya aclode,Chloric chloride yintwaro ya ehydrate (acs),Hydted Copper oxide,Umuringa hydroxy - karbone. Kugeza ubu, dutegereje no gufatanya kubakiriya bakomeye dushingiye ku nyungu. Nyamuneka nyamuneka twandikire kubindi bisobanuro. Ibicuruzwa bizatanga ku isi hose, nk'Uburayi, Amerika, Ositaraliya, Iraki, Ikigereranyo Cyuzuye, Igishushanyo Cyuzuye 95% ibicuruzwa byoherezwa mumasoko yo hanze.
Va ubutumwa bwawe