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1  What are kinds of cooling fan or centrigugal fan supplied by your company?

Answer: we can provide DC cooling fan,  AC cooling fan, EC cooling fan and blower fan.

2  What are kinds of information provided by the customer before inquiry?

Answer : please kindly advise the size, voltage,  the type of bearing, the speed of fan , or air flow.

3  How many  types bearing of our cooling fan are there in our compnay at present?

Answer : now we have two types bearing for the fan, sleeve and ball,  working time of sleeve is for 30,000 hours, the ball is for 50,000 hours.

4 How to detect the data of cooing fan in your company?

Answer:  the speed and voltage are detected by the tachometer, air flow is found by wind tunnel.

5 How to control the quanlity of products in your company.

Answer:  100% total testing before each of fan leaves our factory.