... , compact, good, and the appearance flat, smooth. 1) Specification: 1 / 2 "-6", applied to the stainless steel pipeline system2) Material quality ... L3) Flux domination of pipeline: DN12.5-150MM and 1 / 2 "- 6"4) Standards: ISO, DIN, SMS, IDF, 3A5) Seal Ring ... , Union, Clamps, Sightglass, Cleaning balls and so on. concentric reducer(best price)