Product name : Praseodymium Neodymium alloy, Pr-Nd alloy, Pr Nd alloy
Item :
Details :
Name: Praseodymium Neodymium alloy, Pr-Nd alloy, Pr Nd alloy
Element: Praseodymium (Pr) Neodymium (Nd)
Content % Maximum
RE
Minimum
PrNd/RE
Minimum
Impurity
C
O
Cl -
Fe
Ca
Mg
99.5
99.9
0.03
0.03
0.01
0.2
0.01
0.01
99
99.5
0.03
0.05
0.01
0.3
0.01
0.01
99
99
0.05
0.05
0.02
0.5
0.01
0.02
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2010年5月6日
Expo opening ceremony fireworks not pollute the environment is relatively environmentally friendly
Shanghai Environmental Protection Bureau said today that the Expo opening ceremony fireworks, did not cause environmental pollution.
Zhang full name, according to the environmental protection department of the monitoring data, and calendar New Year's Eve, Shanghai fifth day of the fireworks, firecrackers compared to the situation, although some of the fireworks discharge of pollutants, but not high concentrations of sulfur dioxide, compared to the meager increase in peacetime, Air quality still in "good" within the level.
However, Zhang Quan admits that the next time the wind in the fireworks discharge area, the air particles is indeed increasing, an increase of about 30%, and lasted several hours. Since then, with atmospheric dilution, the air quality in the region to restore compliance.
Zhang Quan said that the whole, the Expo opening ceremony fireworks can be called a "relatively green".
advanced material Replica Rolex life blog seo blog advanced material livejournal blog smartester blog nonferrous material hello world replicas world
Zhang full name, according to the environmental protection department of the monitoring data, and calendar New Year's Eve, Shanghai fifth day of the fireworks, firecrackers compared to the situation, although some of the fireworks discharge of pollutants, but not high concentrations of sulfur dioxide, compared to the meager increase in peacetime, Air quality still in "good" within the level.
However, Zhang Quan admits that the next time the wind in the fireworks discharge area, the air particles is indeed increasing, an increase of about 30%, and lasted several hours. Since then, with atmospheric dilution, the air quality in the region to restore compliance.
Zhang Quan said that the whole, the Expo opening ceremony fireworks can be called a "relatively green".
advanced material Replica Rolex life blog seo blog advanced material livejournal blog smartester blog nonferrous material hello world replicas world
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