广州梓成净化设备制造有限公司

select id,productname,image,descriptions,prodsortid from plproduct where userid='zcjh888' AND productsortids='2692924' AND (class>-1 or class=-3 or class=-1000 or class=-1001) and yzt2 in (2,3) order by xuhao asc limit 30,10===3