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How to define normal operation?

How to define normal operation?
Update Time:2018-10-08

     To avoid damage caused by improper operation, we highly suggest read operation manual first.

     All the operations should follow the operation manual. The damage caused by improper operation will not be covered in warranty.

Below is the example of HONGLI SQ30-2B installation and operation,you may see on your manual if you buy it.


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