There are so many examples of floor leakage now.From the material is mainly divided into stainless steel floor drain, PVC floor drain and copper floor drain.There are odor-proof floor drain with curved head, rising and falling floor drain, ultra-thin floor drain, and special floor drain for laundry machine.The special floor drain of the washing machine is equipped with a rotating cover in the middle, which can be covered when not in use and unwound when used, which is very convenient. In general, the more construction materials you can choose from, the easier it is to live.