Swing Joint VERDURE brand is made from Polypropylene-Random Copolymer Resin (PP-R), a plastic with high molecular weight (high molecular weight), resulting in various physical properties. Including the value of environmental durability (ESCR: Environmental Stress Cracking Resistance) is high as well and can test temperatures up to 80oC with a long service life. Permanently free from rust formation Pipes and couplings are manufactured at the same factory in accordance with DIN8077 / 8078 and the production facility is ISO 9001: 2000 certified.