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本帖最后由 Andy.Yang 于 2013-5-28 08:48 编辑 1 `. Q; x, J% a# X( Y
jcyxb 发表于 2013-5-27 17:21
; l, t8 G$ O$ g6 N" q, i但是,如果没有file NO号和厂商型号等信息,又如何去区分这个PCB是哪一家的?不能区分哪一家的又怎么知道 ...
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_5 J0 c! _2 ^( {- ^Actually, only the customer wants to know where the PWBs come from, but we have below options to find it out:
$ j' R# I/ _( }, q: h1. If the UL file No. is indicated, then directly know the PCB's manufacturer;% P: K1 Q( a7 J: t
2. If the UL file No. is not indicated, then the trade mark and the recognized company name could be the root to find it out;, [" g3 v/ n" \+ S, ~
3. And finally, if the customer still can not dig it, then directly ask the supplier of the PCB, that's the only option.( w# \0 t8 U) P
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And if I were you, I can 99% to find the PCB supplier information even there is UL file No. information and without directly asking the PCB's supplier... |
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