A

ai959

訪客

• 2003/11/26

• #1

[No message]

 

noending

🏆🏆🏆🏆

金幣

212

• 2003/11/26

• #2

磷酸鹽

 

N

nfshih

🏆🏆🏆🏅

金幣

15

• 2003/11/26

• #3

I know you come from HK, can you read Chinese! PO4 means phosphate.