Polybutylene terephthalate (PBT) is a thermoplastic engineering polymer that is used as an insulator in the electrical and electronics industries.It is a thermoplastic (semi-)crystalline polymer, and a type of polyester.olybutylene terephthalate is used for housings in electrical engineering, but also in automotive construction as plug connectors and in households for example in showerheads or irons.
Answered by The WikiAnswersÂ® Community. Making the world better, one answer at a time. Golf is the oldest sport in Europe, so old that the first golf balls were made out of cloth, before our society had the technology to maufacture them out of wood, which then progressed to today's metal cord exterior dimple design.
skip to content. Archery, one of the oldest sports still practiced, is closely linked to the development of civilisation. As a cultural advance, it was comparable to the discovery of fire and the invention of the wheel. In 1200 BC the Hittites and Assyrians shot their bows from chariots, becoming fearsome opponents in battle.