The properties of JPL-50 Rotamat material made in Germany and the similar type of home made product are compared and results of application of the latter are introduced as well.

• 比较了德国半干法喷补料和国产JPL - 5 0型半干法喷补料在性质上的异同 ,并介绍了国产半干法喷补料在焦炉维护上的应用效果。