Michael W. Morrissey was elected in 2010 as Norfolk District Attorney. Prior to his election, he served as the State Senator from the Norfolk and Plymouth District from 1992 to 2010. In addition, he served in the Massachusetts House of Representatives from 1977 to 1992.
A pneumatic tire is a round, rubber tire that is inflated with air. The most common example of pneumatic tires in everyday life is the tires on an automobile. The pneumatic tire can also be found on bicycles, wheelchairs and forklifts.
For SBS Rubber at a glance, click here! Poly(styrene-butadiene-styrene), or SBS, is a hard rubber that's used for things like the soles of shoes, tire treads, and other places where durability is important. It's a type of copolymer called a block copolymer. Its backbone chain is made up of three segments.