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The difference between reduced iron powder and pig iron powder.

Different concept: reduced iron powder, gray or black powder, also known as "double absorbent", can absorb moisture and oxygen in the air, often used in food preservation.

Cast iron powder, which is made from raw iron, is crushed by machine grinding to a metal powder of less than 200.
Different USES: reduced iron powder is often used in welding rails, chemical reduction, preventing oxidation and so on.
Pig iron powder is mainly used in chemical reduction production, steelmaking core wire, metallurgy powder, sewage treatment, heavy iron and other industries.

Different carbon content: the carbon content of reduced iron powder is 0.01%, and the carbon content of pig iron powder is 2%.

 The difference between reduced iron powder and pig iron powder.