RUBBER DAM&RUBBER BAG

A rubber dam is a flexible, elastic barrier made from rubber or similar materials, commonly used in various applications to contain fluids or prevent the flow of water.

The "Air Shield Dam" is not a widely recognized or standard term in engineering or technology, so it might refer to a specific concept or system that’s niche or contextual. However, based on the term itself, it might refer to a "protective air barrier or shield" that functions as a "dam" to block, deflect, or control the flow of air, gases, or fluids.

A rubber bag is a flexible container made from rubber or rubber-like materials, designed to hold liquids, gases, or other substances. These bags are often used in various applications due to their durability and elasticity. Rubber bags are valued for their versatility and reliability across various industries.