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hydraulic bronze
met. 耐水浸蚀铅青铜 (82 ~83.75Cu,3.25〜4.25Sn,5〜7Pb,5~ 8Zn)
nautic., tech. 耐蚀青铜
tech. 耐蚀锡黄铜; 耐蚀铅锡黄铜