Types of stones and their processing methods
Stone refers to non-living and solid materials that are naturally composed of the community and strength of one or more types of minera...
Posts by جهان آرای
How to store chemicals in the laboratory
Laboratories are often places where some of these materials are incompatible with each other due to the storage of different chemicals,...
Reasons for resin yellowing after some time.
What is the reason for yellowing resin products after a while؟
One of the main problems of working with epoxy resin is the yellowing...
