... , good tensile, rust resistance ,long lifetime, convenient application Ductile iron T-type pipe 1,30years focus on QA2,decades experience of Canton ... .Standard: ISO2531:1998, EN545:2002External coating: Metallic Zinc complying with the standard Iso8179,and bitumen, or special protective coating as ... the standard ISO4179, or special protective lining as request. Ductile iron T-type pipe push on joint