... Nano-antibacterial apecifications: 1, green nano level 2, hot melt connection 3, GB18742.2-2002, DIN8077 4, large in stock Specifications:1, green nano ... -2002, DIN80774, large in stock Xinhexie Nano-antibacterial PP-R composite pipes: green nano level: Application Advantages: Good hygienic performance: ... chemical corrosion.Good thermal and pressure resistance: The pipes can be used for a long time when ...