短语词组短语beryllium -containing bronze 铍青铜beryllium bronze tubing 铍铜管beryllium bronze strip 铍青铜薄带材low beryllium bronze 低铍铜beryllium bronze QBe2 铍青铜QBeberyllium bronze wire 铍青铜丝beryllium bronze ball 铍青铜保持架 返回 beryllium bronze