【 Ac fan 220 v - 230v 】 How to distinguish true and false of old and new

220 v - refurbished ac fan 230 v how to recognize, believe a lot of customers in the advisory exchange 220 v - fan 230 v, will ask the seller whether manufacturer, in general, there are two causes, the first one, manufacturers selling ac fan - 220 v 230 v must be cheaper than traders; Second, manufacturers selling fan is original, is not a refurbished machine.

to determine when we can see ac cooling fan blades: ac 220 v fan - original 230 v of the surface of the blade can present an inferior smooth effect, to the light can see the fine and uniform particles, with the hand touch feeling is rough; Fan because of long time and air friction, the retrofit particles on the surface of the blade all have no, smooth, can see use scratch marks.

ac fan 220 v - There is mounting holes: after 230 vzui renovation fan is used, so will leave a mark on the mounting holes, if it is to use the work will be left in hole thread on the screw, if it's with screws and nuts will be around the hole left nut indentation.

can have a look at the first trademark: the trademark of the original ac cooling fan of printing is very delicate, uniform color, printing clear luster, and a protruding sense; Fan of the trademark for the retrofit is informal, print quality is very poor, often will color shades, handwriting and no protruding, and gently with fingernails scraping a few trademark surface will scrape your colors, and the original trademark hand fingernails will not be affected.

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heat exchange fan 细节。 asp吗? Cpid = 71

http:///products- possessing a cooling fan manufacturer 细节。 asp吗? cpid = 72