RE: APPLIED CHEMISTRY/ CALCIUM CARBONATE (CaCO3) AS STRUCTURAL RAW MATERIAL OF EGG HULLS @madridbg 74 over 3 years ago StemSocial You are viewing a single comment's thread: View full context View direct parent #posh twitter https://twitter.com/BGMadrid/status/1346176781016051712?s=20 posh 0 0 0.000 0 comments