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Resilient seated sluice valve

We will do our best to create the best quality with advanced technology and endless product development.

Until the highest quality manholes are made, rigorous process and scientific design must be supported. Segye Cast Iron delivers the highest quality through a scientific, industry-leading eight-step production process. We bring back our ancestors' craftsmanship today and do our best without neglecting a single process.


  • Pre-expanding beads of polystyrene

    01 Pre-expanding beads of polystyrene

  • Making form pattern

    02 Making form pattern

  • Pattern assembly

    03 Pattern assembly

  • Refractory coating

    04 Refractory coating

  • Molding

    05 Molding

  • Melting

    06 Melting

  • Pouring

    07 Pouring

  • Knock out

    08 Knock out

  • Machining

    09 Machining

  • Epoxy powder coating

    10 Epoxy powder coating

  • Dimensional inspection

    11 Dimensional inspection

  • Water pressure test

    12 Water pressure test