A physical therapist works with a patient. People who have been in accidents or have disabling conditions such as low-back pain, arthritis, heart disease, fractures, head injuries and cerebral palsy turn to physical therapists, commonly called PTs, for help.
Iron ore crusher. In the iron ore crushing plant, the most commonly used iron ore crushers are jaw crusher, impact crusher, cone crusher and mobile crusher. Jaw crusher for iron ore: Jaw crusher is used in primary crushing station. In the iron ore crushing plant, it can crush iron ore into small sizes.
The earliest crushers were hand-held stones, where the weight of the stone provided a boost to muscle power, used against a stone anvil. Querns and mortars are types of these crushing devices. In industry, crushers are machines which use a metal surface to break or compress materials.