某公司推出金属外壳手机产品替代现有塑料外壳手机产品，这种创新属于

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SQL Error: select id,body,options from ***_enewstiku where sourceid='28611' and id < 2336091 and id<>'2336091' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='28611' and id > 2336091 and id<>'2336091' order by id asc limit 5