EN 558-1:1995 Industrial Valves - Face-to-Face and Centre- to-Face Dimensions of Metal Valves for Use in Flanged Pipe Systems Part 1. PN-Designated Valves
1995EN 558-1:1995 Industrial Valves - Face-to-Face and Centre- to-Face Dimensions of Metal Valves for Use in Flanged Pipe Systems Part 1. PN-Designated Valves