Uploaded February 2021 | Updated September 2026, 1 week ago
In 1964, a new method of waterproofing cement was introduced in Australia. Watch this news story about how this new technology could help farmers and their cow sheds. Listen for the different vocabulary used to describe the process.
In 1964, a new method of waterproofing cement was introduced in Australia. Watch this news story about how this new technology could help farmers and their cow sheds. Listen for the different vocabulary used to describe the process.










