Nano-antibacterial apecifications: 1, green nano level 2, hot melt connection 3, GB18742.2-2002, DIN8077 4, large in stock Specifications:1, green nano level2, hot melt connection3, GB18742.2-2002, DIN80774, large in stock Xinhexie Nano-antibacterial PP-R composite pipes: Rest assured by our service!