What customers need to realize first is that there is no real governing body judging how specifications are created, claimed, and tested, so manufacturers can pretty much say anything. With no authority monitoring what display providers can and cannot claim, customers have to shoulder this fact-checking responsibility themselves.Thereareafewstepsinthisprocess.First, the absence of regulated standardization within the industry does not preclude the existence of informal but commonly-met benchmarks.For each display metric, customers should 
The best way to reduce the risk is to set up an “office” in China or hire an experienced, to help you with the sourcing and inspection. or 
find a third party to make the inspection for sure, it won't cost much but do save you a lot time&money.

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