... )Certification:ISO9001:2000,Standard: DIN 8077& DIN 8078 2)Material:PPR+fiber glass 3)Pres: 1.25MPa, 1.6MPa, 2.0MPa ,2 ... system, Central air conditioning system, industrial liquids transportation SEHER glass fiber ppr pipe consists 3 layers, the middle layer is strengthening glass ... fiber, inner layer is hot water material, and the outer layer ...