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Grade

A

WO2.8-2.97 Content (%min)

99.95

Impurities Content
(% max)

Element

Max

Al

0.0005

As

0.0010

Bi

0.0001

Ca

0.0010

Cd

0.0001

Cr

0.0010

Co

0.0010

Cu

0.0003

Fe

0.0010

K

0.0010

Mg

0.0007

Mn

0.0010

Mo

0.0020

Na

0.0010

Ni

0.0007

P

0.0007

Pb

0.0001

S

0.0007

Sb

0.0005

Si

0.0010

Sn

0.0002

Ti

0.0010

V

0.0010

Density

2.4-2.8g/cm3

F.S.S.S.

12-19μm

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Tungsten Oxide