Home » Tender for Delivery Of Fittings For Shaped Parts, Fittings From Diameter 16 To Diameter 110 For Pn 10 And Pn 16, Fittings For Butt And Electro Welding From Diameter 16 To Diameter 90, Including Re100 (polyethylene), For Pressure From Pn10 And Pn16., Bulgaria