The World Health Organization (WHO) recently released a document detailing how one can create a batch of handrub gels! Read more: https://www.who.int/gpsc/5may/Guide_to_Local_Production.pdf

Rebar Corrosion is Serious Problem You Can Prevent with These 7 Effective Techniques
Rust stains, cracks, spalling, delamination, and exposed rebars are signs of rebar corrosion. Rebar corrosion