两台及两台以上链条葫芦起吊同一重物时，重物的重量应小于（   ）。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69528' and id < 4504952 and id<>'4504952' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69528' and id > 4504952 and id<>'4504952' order by id asc limit 5