Floor drain refers to the drainage equipment that connects the ground to the drainage pipeline system, and is an important interface between the drainage pipeline system and the indoor floor drain. As an important component of the drainage eluent in residential buildings, its performance directly af

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There are a large number of door handles on the market, with varying quality. Good door handles have a long service life, while inferior door handles are prone to rust and other conditions after being used for a long time. So how should we choose door handles?1.