... 铸造黄铜、不锈刚 cast brass 铸造锰黄铜 manganese cast brass ; manganese casting brass 铸造改良黄铜 oker ...
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... Cast brass Metallography 铸造黄铜 manganese cast brass 铸造锰黄铜 ; 锻造锰黄铜 Cast Brass Padlock 压铸铜锁 ...
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manganese e cast brass 铸造锰黄铜
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