Industrial Ovens

Asphalt: Imperfect Yet Indispensable

Asphalt: Imperfect Yet Indispensable

One of the most versatile, durable and highly viscous substances on the planet, asphalt, aka bitumen, is both a naturally occurring substance and a manufactured material refined from distilled crude oil. Asphalt is typically a…

How Are Contact Lenses Made?

How Are Contact Lenses Made?

Contact lenses are made either out of glass (hard lenses) or silicone hydrogel (soft lenses). In both cases, they feature some level of oxygen permeability, which is an indispensable requirement for the wearer’s comfort. There…