The sewer means the drainage device of the bathtub, the basin and so on.

Mainly by bouncing cover, bouncing core, sealing washer main body: zinc alloy, the seat gasket, the lower pedestal gasket, the pressing CAP, the lock cap, the lower water pipe constitute.

The main material of the water is zinc alloy will oxidize, easy to brittle, to a certain number of years will break or rot, the whole copper red stamping forged in more than 10 years, zinc alloy 5 years or so, stainless steel 10 years or so.

But the copper and stainless steel service life is long, the quality has certain protection.