Thaum Lub Kaum Ob Hlis 7, 2024, 40th hnub tseem ceeb ntawm kev tsim ntawm Tuam Tshoj Lub Tsev Waterproofing Association tau muaj nyob rau hauv Chongqing. Ntau tshaj 900 tus tswvcuab los ntawm thoob plaws lub tebchaws, tsim cov tuam txhab tsis muaj dej, cov chaw tshawb fawb tshawb fawb thiab lwm cov neeg sawv cev tau koom nrog lub rooj sib tham.
Txij li thaum nws tsim nyob rau hauv 1984, Tuam Tshoj Lub Tsev Waterproofing Association tau ua lub luag haujlwm tseem ceeb hauv kev txhim kho Tuam Tshoj lub tsev waterproofing kev lag luam, ua lub luag haujlwm tseem ceeb hauv kev txhawb nqa kev tsim kho kev lag luam, kev tsim qauv kev lag luam, txhawb kev lag luam kev lag luam, txhim kho kev lag luam kev sib tw, thiab tswj kev ua lag luam thiab ecology.
DUOWEI tau tsim muaj nyob rau hauv 1983, tib lub sij hawm raws li Tuam Tshoj Tsev Waterproofing Association, Duowei yog ib tug pov thawj thiab pov thawj ntawm txoj kev loj hlob ntawm kev lag luam. DUOWEI ib txwm tau mob siab rau kev tsim kho hlau thaiv kev lag luam, tas li txhim kho cov dej tsis zoo ntawm lub tsev hlau thaiv cov khoom thiab cov tshuab, txhim kho cov neeg siv khoom, thiab yeej qhuas thiab lees paub los ntawm cov neeg siv khoom. Ntawm qhov kev tshwm sim no, DUOWEI yeej "Kev Lag Luam Tus Thawj Coj hauv kev tsim cov dej tsis zoo", uas yog lub koom haum kev lees paub ntawm Duowei kev siv zog rau ntau xyoo, thiab nws kuj yog cov neeg siv khoom ntseeg siab hauv Duowei, thiab nws yog lub zog tsav rau kev siv zog mus rau pem hauv ntej.