... /2"*12 Material:brass Surface:original Full size Full kinds Compression Fittings Union ElbowDiameter:1/2"*12Material:brassSurface:originalFull size Full kindsSize ... can be departed down without any leaking proble -nipples compression fittings union elbowCATERPILLAR,HITACHI,KOMATSU,KATO,SUMITOMO,KOBELCO,CASE,LINK-BELT..... ... customers kind to build various complex copper,irron,stainless steel fittings