Company Description. Protec Arisawa is the global leader in the design and manufacturing of FRP (Fiber Reinforced Plastic) Pressure Vessels for membrane filtration systems. With over 40 years of experience in filament winding and three production sites on three different continents, Protec Arisawa is renowned for its cutting-edge technology and high-quality pressure vessels. Our commitment to quality and innovation makes us the supplier of choice...