Pre-sale Service

Since  Zhengzhou longer founded ,our company have a set of perfect quality assurance system, and passed the ISO9001:2000 international quality system certification. A warranty card per client, the superior quality make you worry-free.
If you have interest in our any product ,our sale man will patiently answer your all questions.and provide personal solutions according to your questions.In order to prevent unnecessary loss caused by incorrect using, our company will send relevant technical personnel to show how to operate machine. To ensure properly use the product, allow the user to use safety, rest assured.

Company Environment

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