Perlite Vermiculite Lightweight Filler - Exfoliators « what-is-perlite
(Clicks: 120;website added: Nov 5, 2013, what-is-perlite)
Exfoliators offer various industries ranging from construction to horticulture & hydroponics, the multi usage of Perlite & Vermiculite, be it in lightweight plaster or fire protection. 
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exfoliators.com.au