Chinyadza, Hillary Characterisation and modification if necessary of a Borax-petalite frit(H) into a cast iron enamel / Hillary Chinyanda. - Bulawayo : NUST, 1994 - iii, 61p. : ill. ; 30cm. Project(Bsc)---NUST,1994. Includes bibliographic references. Subjects--Topical Terms: Cast iron--enamelEnamel and enameling.