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.
The Mesoamerican Ball Game is the oldest known sport in the Americas and originated in southern Mexico approximately 3,700 years ago. For many pre-Columbian cultures, such as the Olmec, Maya, Zapotec and Aztec, it was a ritual, political and social activity that involved the whole community.