UNS C70250 (铜镍l) UNS C70260 (铜镍) 范 UNS C19025 (高铜合金,NB109) copper-aluminum- UNS No. C19002 UNS No. UNS No. C19015 UNS No. C19020 UNS No. C19025 UNS No. C63800 UNS No. C64725 UNS No. C70250 UNS No. C70260 UNS No. C70265 UNS No. C70310 UNS C63800 UNS C70250 UNS C70260 UNS C19025 NB109 , , C19015, ,C19020, , C63800, C64725, C70250, C70260, C70265, and
