... Specificationshose fittings 1)Material:Carbon steel 2)Finish:yellow Zinc plating 3)Standards:SAE,JIC,BSP,NPT,DIN etc 4)high ... , stainless steel, brass, etc. 2)Finish: Zinc(yellow or white) plating, nickeled. and so on3)Standards: SAE,JIC, BSP, NPT etc ...