600mm 700mm 800mm 100mm to 2000mm Penstock Pipe for Hydropower
Spiral Welded Penstock Pipe for Hydropower
Model:Spiral Welded Penstock Pipe
Spiral Welded Penstock Pipe for Hydropower
Model:Spiral Welded Penstock Pipe
spiral welding and straight seam welding. Galvanized spiral welding has a wider range of uses but is also more difficult.
400mm 500mm 600mm 700mm 800mm 100mm to 2000mm Penstock Pipe for Hydropower