往复压缩机连杆使用钢材的含碳置一般为（ ）％。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='24889' and id < 2124326 and id<>'2124326' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24889' and id > 2124326 and id<>'2124326' order by id asc limit 5