2009年05月23日
カテゴリ： カテゴリ未分類
One day I put on my work out side in summer.
There is a board just a board here.
I was surprising . What's happened?
And before long I really understood.
It was melted by sunlight.
I have knew they say stearic acid is melted 50 degrees celsius.
I thought that stearic acid is carefully material.
There is a board just a board here.
I was surprising . What's happened?
And before long I really understood.
It was melted by sunlight.
I have knew they say stearic acid is melted 50 degrees celsius.
I thought that stearic acid is carefully material.
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