materi Soft
Kalsit, Dolomit, Kaolin, Barite, Quartz, talc, Zircon Sand, Wollastonite, Coal Powder, Calcium cahya karbonat, Mica, Dat, Attapulgite, Brucite, Bentonit, Garnet, Magnesite, Andalusite, Pyrophyllite, kalium Feldspar, Diopside, Rectorite, Diatomite , Gypsum, Pearlite etc.
materi hard
Carborundum, Boron Carbide, Putih corundum, Zirconia, Cerium oksida, suhu High Alumina, Silicon nitride, Boron Nnitride, Brown nggabungke Alumina etc.
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