Kev kho dej phwj tuaj ntawm Beijing Fengtai resettlement zej zog yog tus saib xyuas ntawm Henan Datang Shengshi Construction Engineering Co., Ltd. Datang Shengshi muaj kev paub dhau los thiab tshwj xeeb hauv kev tsim kho cov dej phwj hauv lub zej zog.Kev kho dej phwj siv peb lub tuam txhab fluorescent yaj oxygen meter, sludge concentration meter thiab ultrasonic qib ntsuas thiab lwm yam cuab yeej rau kev saib xyuas cov dej theem thiab dej zoo ntawm cov txheej txheem dej phwj tuaj.
