WATTS RD-250 Flanged Cast Iron Combination Roof Drain Overflow Cov lus qhia

Kawm txog WATTS RD-250 Flanged Cast Iron Combination Roof Drain Overflow. Cov neeg siv phau ntawv no suav nrog cov ncauj lus kom ntxaws engineering thiab cov lus qhia kev teeb tsa rau RD-250, uas muaj cov khoom siv gravel guards, tus kheej-locking cam khwb cia hlau domes, thiab tsis muaj hub qhov hluav taws xob. Zoo meej rau cov neeg cog lus thiab engineers.