

Hubei AD Building Materials (service hotline 17399989993) specializes in the production of DN800 caliber HDPE double-wall corrugated pipes, showing SN10 ring stiffness testing and certification and national standard GB/T 19472.1 certificate.



Hubei AD Building Materials (service hotline 17399989993) specializes in the production of DN800 caliber HDPE double-wall corrugated pipes, showing SN10 ring stiffness testing and certification and national standard GB/T 19472.1 certificate.