"草酸鋇, Puratronic"
"草酸鋇, Puratronic"
"草酸鋇, Puratronic"
barium oxalate
草酸鋇
草酸鋇
草酸鋇
草酸鋇
草酸鋇
草酸鋇
草酸鋇
barium oxalate
barium oxalate
barium oxalate
barium oxalate
barium oxalate
barium oxalate
barium oxalate
barium oxalate
barium oxalate
草酸鋇
草酸鋇
草酸鋇
barium oxalate
barium oxalate
barium oxalate
草酸鋇
草酸鋇
草酸鋇
草酸鋇
草酸鋇
草酸鋇