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??????????????籣??????????????У?????????·??????????????????????????·?塢С??????pcb?塢??????????·????????????????????·????????????

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?????fr-4

?躸???????ī

??糣????4.2

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??????????1oz

??????????1oz

???洦??????????????

?????3mil

?????? ??0.5mil

??????? ??5mil

???32.8mm*28.6mm

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