1, Ibikoresho Ibikoresho byingenzi byibirahure ni ibirahuri byongeye gukoreshwa, hekeste, ivu rya soda, umucanga wa silika, borax na dolomite.2, Gushonga Ibirahuri byose bivanze bigaburirwa itanura kandi bigashyuha kugeza kuri dogere 1550-1600 kugeza bishonge.Itanura rikora amasaha 24 kuri 24, iminsi irindwi mu cyumweru.Itanura rimwe rishobora ...
Soma Ibikurikira