压力加工锡青铜QSn4-3,表示Sn含量为4%，（ ）含量为3%。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='24891' and id < 2124423 and id<>'2124423' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24891' and id > 2124423 and id<>'2124423' order by id asc limit 5