... 4" 4.Length:30cm,45cm,60cm or as per request Established in 1998, Ningbo Jiekelong Precision Manufacturing ... land and air. Specialized in development and production of copper valves, gas valves, cast steel valves, stainless steel ... 30cm,45cm,60cm or as requested.6.Material: Copper or Stainless Steel7.Working Medium: Water,Plumbing,Air ... Thread:ISO228/1,BSP,NPT etc. or as per requested.9.Size: F1/2"*F1/2", ...