Chitsulo, chowotcherera, chipolopolo chachitsulo, ndi zinthu zotayidwa zimadzazidwa ndi kugwetsa-kuchepetsa kugwetsa kwa epoxy resin-bonded mineral casting.
Izi zimapanga zida zophatikizika zokhazikika kwanthawi yayitali zomwe zimaperekanso mulingo wabwino kwambiri wokhazikika komanso wosasunthika.
Imapezekanso ndi zinthu zothira ma radiation