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2Â¥: Originally posted by ´×ÈË at 2013-02-14 13:01:52
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hailian: ½ð±Ò+5, ¡ï¡ï¡ïºÜÓаïÖú 2013-02-15 17:31:21
NO NEED , they are B type lead oxide and will not change due to thermal treatment .
The aged test is  just for porosity check .

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3Â¥: Originally posted by ru0629 at 2013-02-14 13:11:18
NO NEED , they are B type lead oxide and will not change due to thermal treatment .
The aged test is  just for porosity check .

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