black fused alumina emery powderF4 PV:986
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Category：Black Fused Alumina
SPEC：F4
Packaging：Bag Package/Small Bag Package
Details of stocks information
Black corundum is also known as low aluminum corundum. It is also a new type product of polishing material, and it is a dark gray crystal body made α-Al2O3 and ferropicotite as main ore in the electric arc furnace by smelting the bauxite.
It has characteristics of moderate hardness, high toughness, high temperature resistance, and stable thermal stability.
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