PPR Stabi Pipe 1. Good Korea Hyosung raw material 2. ISO15874 DIN8077-8078 3. ISO9001 ISO14001 CE AENOR PPR Stabi Pipe 1. Professional factory2. Good Korea Hyosung raw material3. ISO15874 DIN8077-80784. ISO9001 ISO14001 CE AENORFeatures: 1. Covered with Aluminum2. Its inner part's outer layer is coated with an anti-creep layer; the outer layer is coated with PP-R as protection, and combined with ...