Why do you need UL certification?
So far, there have been more than 2 thousand PCB board manufacturers successfully obtained UL certification, which is the majority of rigid circuit board.
Products into the United States, customs and also to carry out UL security certification inspection.
However, a large number of manufacturers do not represent the industry has a deep understanding of UL standards. A certification advisory 1, single plate (single + single-sided double-sided single-layer) UL certification, UL certification 2 prefabricated multilayer board 3, multilayer board UL certification UL certification 5, 4 metal plate, flexible circuit board for 6, two new materials, process, circuit board certification training and factory audit, deal with 1 printed circuit in the UL standard and product category 2, interpretation of the printed circuit board UL, UL report of 3 test items: B/D, combustion test, thermal shock, etc. 4 UL mark requirements 5, how to find the UL website archives information 6, factory audit should pay attention to matters 7, how to avoid being VN and VN to deal with
