Super grade violet tungsten oxide is a type of violet tungsten oxide classified in accordance with national standard with grade of WO2.72-0. The other type of violet tungsten oxide is grade 1 violet tungsten oxide.
However, in fact, different manufacturers are producing a variety of violet tungsten oxide with different specifications. That is because raw materials, processing equipment and processing technology adopted by the manufacturers may vary during the actual production process.

According to national standards, the component of super grade violet tungsten oxide should meet the following requirements:More details, please visit:
http://www.tungsten-powder.com/violet-tungsten-oxide.html

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