Penstocks Runnig project Penstocks Runnig project October 27, 2020 Sirma Mutafchiyska Small penstocks for waste water treatment plant are manufacturing today – diameter DN 250, stainless steel material. Tomorrow we will contunue with larger ones – 1000×800. Feel free to contact us for your eqipment for water treatment plants ! Request a quote October 27, 2020 Categories:NEWS 1 Likes