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Silicon Nitride Rod Rodrod Silicon Nitride Rod Factory Price Sell Si3N4 Silicon Nitride Ceramic Rod. US 10.00-50.00 Kilogram. 1.0 Kilograms ... Good Hardness Silicon Nitride Ceramic Rod. US 10.00-40.00 Piece. 30 Pieces ... Un-knit and velvet surface 8) Good airproof capability 9) Good grind-resist capability Item Test Condition Unit& ...
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