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Help CenterRoof Ventilation.roof Exhaust Fan
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Roof Ventilation.roof exhaust fan
Welcome to GRAD
Ventilator standards drafter,Focus on ventilator more than 20 years
1.Automatic driving by wind, working 24 hours of a day
2.High sensitivity, the blades drive with slight wind, the difference in temperature also makes the blade driving.
3.Stable rotary, mute sounds so no influence of the workshop
4.Complete senior axis bearing, no lubrication
5.Corrosion resistant, acid proof and alkali proof, long time using
Order Requirement
We will appreciate it a lot if you can offer us your product performance requirements and operation environment, so that we can customize optimal production to meet your every requirement.
1,Air volume.
2,Total Pressure or Static Pressure.
3,Voltage and Frequency.
4,Medium Temperature and Density.
5,Altitude of Operation Place.
Roof ventilator product display
Usually we use plywood package or naked package. Some of the products like fan coil unit or table tennis board have standard carton package. The shipping terms are LCL, 20’ container, 40’ container
Before-sale services:
(1) Tell customers how to use our products and matters needing attention.
(2) Guide customers to choose the best and economic product, recover the investment within short time.
(3) Site inspection if you need.
In-Sale services:
(1)Quality control must be inspected strictly.
(2)In accordance with the agreements stipulated in the contract.
After-sale services:
(1) If the project needs our installation guidance, we can send our engineer and translator. We can also send customers installation video to teach them how to fix and operate with
our product.
(2) Usually, our product warranty is 18 months after leaving factory or 12 months after installation. within this months, all parts broken will be responsible for our factory.
(3) Regular contact with customer, consult with the customer feedback, come true with
the customer's two-way communication.
Shandong GRAD Group Co.,LTD is established in 1993, located in Dezhou Shandong, covering an area of 700 thousand square meters, with more than 2500 employees. The total capital is 925 million RMB, and annual output value over 2.5 billion RMB.During 20 years' development, GRAD Group concentrates on the central air-conditioning and compound material products and show the world a high-technological enterprise combining construction budget, technical consultation, products design, manufacturing and debugging service. There are 10 series, over 130 kinds of products covering the whole central air-conditioning series and the compound materials series products. The high standard workshop covering 350 thousand square meters.
GRAD sincerely welcome all friends visit
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