... can over 50 years.2. High temperature resistanceUnder the stated pressure condition, the temperature is 0~80 for PPR, the service ... proved by prevent medical college of China that PP-R pipe is not poisonous, suitable for drinking piping completely.SPECIFICATION1. ... items: pipe, coupling, tee, elbow, cross..2. Size (dia): 20mm, 25mm, 32mm, 40mm, 50mm, 63mm, 75mm, 90mm, 110mm, 160mm.3. Pressure grade ...