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Mpira wa Touraline
Mpira wa Tourmaline, womwe umadziwikanso kuti tourmaline ceramsite, tourmaline mineralization mpira, tourmaline ceramic mpira, ndi zinthu zatsopano zomwe zimapezedwa popanga ndi sintering tourmaline, dongo ndi zida zina zofunika.Dzina lachingerezi: Mpira wamwala wa Tourmaline.Zida zazikulu ndi: tourmaline, dongo ndi zipangizo zina zofunika.Kutalika kwake ndi 3-30 mm;mitunduyo ndi imvi-wakuda, kuwala chikasu, wofiira ndi woyera.
