深圳市博纳德精密仪器有限公司

select id,productname,image,descriptions,prodsortid from plproduct where userid='szbonad' AND productsortid='2974444' AND (class>-1 or class=-3 or class=-1000 or class=-1001) and yzt2 in (2,3) order by xuhao asc limit 20,10===2