Polymeric pipes is a fixed active fire protection device which consists of three layers, an inner layer made of PP-R 100, a middle layer made of PP-R 100 + fiberglass and an outer layer made of PP-R 100, and filled with dry/wet chemicals that are used in emergencies to extinguish or control fires. / مالك الفرصة: منصة استثمر بالسعودية