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: green nano level: Application Advantages: Good hygienic performance: being ...