When installing this product, the orientation of inlet and outlet must not be reversed. And it must be fixed by support or hoop.
产品在安装时，进出口方向不能相反，且必须用支架货抱箍固定。
When installing this product, the orientation of inlet and outlet must not be reversed. And it must be fixed by support or hoop.
产品在安装时，进出口方向不能相反，且必须用支架货抱箍固定。
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