Per&Tas has been established in 1980. Company headquarter is located in Istanbul, Turkey. The driving force behind each of us at Per&Tas Metal and Mining Products Inc., since opening our first office in 1980, is improving our clients&＃039; business through our product base. Our company produces expanded perlite, perlite ore, perlite products, ferro alloys and refractory material with the experience and supplies perlite and perlite products for construction, pharmaceutical industry, textile and agricultural ***** pertas dot net. Quality of the material Perfectly to use in foundry as slag remover, slag coagulant, slag binder.