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Shijiazhuang World Imp&Exp Trade Co.,Ltd
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Mica :- Mica ,a layer-structured mineral , is composed of potassium ( k ), aluminum ( Al ), magnesium ( Mg ) and lithium etc. There are
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Perlite :- Perlite Products Perlite: A natural volcanic glass similar to obsidian but having distinctive concentric cracks and a relatively
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Vermiculiet :- Vermiculite Products Description: Essentially vermiculite is one member of the miraculous hydrated silicate minerals,
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