According to the inner tubes different combination mode, machine can be divided as: DB, DI microduct bundles extrusion line, link-duct bundles extrusion line, and flat-duct bundles extrusion line.

The thick walled microducts also can be called DB microduct bundles line, inner pipes can be grouped as 1way to 24+1 way. Link/Flat duct bundles making machine group ducts 1 way to 7 ways. Inner tube diameter of 5-20mm.

The produced microduct bundles are widely used in global communication fields such as fiber to the home(FTTH), FTTx, etc. Bundles should be done underground or on existing infrastructure. The bundles achieve to place more communication tubes in a limited space, which can solve the problem of limited space in cities or suburbs to the greatest extent.