duplicator ink for risograph GR

We are not only professional manufacturer but also ink and master teaching base in China, we teach our agents ,our students,even our competitors how to judge or test ink and master. With good reputation in this line, we hope to help all our partners and competitors . we hope that all China ink and master can have a new and top quality era.
Our main products: for risograph ink and master such as GR ink and master, CR ink and master, RP ink and master, FR ink and master,ks ink and master, rz ink and master, for ricoh VT-600 , JP-12, JP-6,JP-7.JP-500....Gestetner CPI2,CPI6,CPI7.CPI10....