... -type) joint DI pipe,Ductile iron pipe K type, K type joint push on DI pipes Mechanical (K-type) joint DI pipe DUCTILE IRON PIPES ... , ISO4179, ISO8179, ISO4633, ISO7186, EN545, EN598, BS4772 and other equivalent standards.EFFECTIVE LENGTH: 5.5 or 5.7 ... or 6 meters.WALL THICKNESS:K9 is the normative one; we can supply K7, K8, K10, K12 if ... after mutually agreed. Mechanical (K-type) joint DI pipe