... /8''-6'' bushing 2 BS,ANSI,DIN Thread Standard 3 Black,Galvanized 4 ISO,SGS,CIQ Cast Iron Pipe Fitting ... 6"Thread StandardBS ANSI DINFinishElectro Galvanized, Hot Dipped Galvanized, Black, all be antirust treatmentPackingcartons, woven bags, wooden boxesQuality ControlExcellent ... :1.DIN (Germany) standard, DIN 2950/1692/29992.BS (British) standard, ISO49 / ISO5922 / ISO7/13.ANSI standard, ASTM B16.3 B16 ...