Valentin Spiess

(Former)

Activities

  1. 2022
  2. Aufbereitungstechnisches Seminar 2022

    Valentin Spiess (Invited speaker)

    3 Oct 20225 Oct 2022

    Activity: Participating in or organising an eventParticipation in conference

  3. 2019
  4. Aufbereitung und Recycling

    Valentin Spiess (Participant)

    7 Nov 20198 Nov 2019

    Activity: Participating in or organising an eventParticipation in conference