Magalasi opanda ma microspheres: njira zopangira ndi 5 zamatsenga zimagwiritsa ntchito ma microspheres opanda kanthu
Chiyambi cha Hollow Glass Microspheres Hollow glass microspheres (Zithunzi za HGM) ndi dzenje, Tinthu tating'onoting'ono tomwe timapangidwa kuchokera ku galasi la silika kapena borosilicate…



















































































