兑水 发表于 2009-9-12 15:42:04

ASTM B 441-2004 铜钴铍及铜镍铍条和棒

B441-04 Standard Specification for Copper-Cobalt-Beryllium and Copper-Nickel-Beryllium Rod and Bar (UNS Nos. C17500 and C17510)
页: [1]
查看完整版本: ASTM B 441-2004 铜钴铍及铜镍铍条和棒