Supported has an interfacial connection (barrel/PTH) and the unsupported hole is a one side only pad (nonPTH/Barrel)
kat
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<DIV><FONT size=1>Supported has an interfacial connection (barrel/PTH) and the
unsupported hole is a one side only pad (nonPTH/Barrel)</FONT></DIV>
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<DIV><FONT size=1>kat</FONT></DIV></BODY></HTML>