CUZN40黄铜带 CUZN40黄铜
C1020无氧铜导电、导热性极好
CUZN40黄铜带 CUZN..
BOHLER M333耐腐朽..
BOHLER M268预硬高..
BOHLER M310高耐腐..
BOHLER W302优质铝..