Overview Reviews Product Description IMPA 734510 Steel welding neck flange DIN2631 EN1092-1 PN6, 4" Product Videos Custom Field IMPA Code 734510 Product Reviews Write a Review Write a Review × IMPA 734510 Steel welding neck flange DIN2631 EN1092-1 PN6, 4" Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *