1) Compared with air conditioning that produces the same cooling effect, HANG YU standard FRP cone  fan requires reduced cost of ownership and operating coat, which are respectively 80% and 90% lower that that if conditioning.
2) The exhaust fan can reduce the temperature to 28 degree, it can achieve even better effect if using well water as the source of the water tank.
3) Fresh, moist air: The cleanliness of air can be up to 99%.
4) Reliable quality and economical price make our standard exhaust fan the ideal product for greenhouse.

Q: What voltages you can do , if you can make special voltages ?

A:  Normal standard is 380V for 3phase, 220V for singple.The voltage and herz can be customized as your requirement.For example,400V,240V,60Hz.


Q: Hong long is the warranty?

A:  One year. Brokens parts can be provided free of charge during this period.We use good materials and motors,the fans are hardly broken.


Q: What is the MOQ , can I order a sample for test?

A: MOQ is 1sets, it's for convienence to arrange products. If you need sample for test ,then order large quantity, 1 set for sample is ok,too.


Q: Are you real manufacturer or ..?

A:Yes, we are 100% original manufactuer of exhaust fan.Our factory located at Qingzhou city,Shandong province.Welcome to visit us.As a manufacturer, we have strict control of the material purchase and productions quality. Make sure the goods delivery to you are unwounded and perfect.


Q: How can I pay?

A:  We accept T/T(Telegraphic transfer) and L/C(Sight letter of credit).30% deposit is needed for TT payment.Balance against the copy of B/L(bill of lading).