Leitura de XML da NFe

<det nItem="1">
        <prod>
          <cProd>0012</cProd>
          <cEAN></cEAN>
          <xProd>MOUSE ESPANHA PRETO PS2</xProd>
          <NCM>84716053</NCM>
          <CFOP>6102</CFOP>
          <uCom>PC</uCom>
          <qCom>10.0000</qCom>
          <vUnCom>4.08</vUnCom>
          <vProd>40.80</vProd>
          <cEANTrib></cEANTrib>
          <uTrib>PC</uTrib>
          <qTrib>10.0000</qTrib>
          <vUnTrib>4.08</vUnTrib>
          <indTot>1</indTot>
        </prod>
        <imposto>
          <ICMS>
            <ICMS00>
              <orig>2</orig>
              <CST>00</CST>
              <modBC>3</modBC>
              <vBC>40.80</vBC>
              <pICMS>7.00</pICMS>
              <vICMS>2.86</vICMS>
            </ICMS00>
          </ICMS>
          <IPI>
            <cEnq>999</cEnq>
            <IPITrib>
              <CST>50</CST>
              <vBC>40.80</vBC>
              <pIPI>15.00</pIPI>
              <vIPI>6.12</vIPI>
            </IPITrib>
          </IPI>
          <PIS>
            <PISAliq>
              <CST>01</CST>
              <vBC>40.80</vBC>
              <pPIS>0.65</pPIS>
              <vPIS>0.27</vPIS>
            </PISAliq>
          </PIS>
          <COFINS>
            <COFINSAliq>
              <CST>01</CST>
              <vBC>40.80</vBC>
              <pCOFINS>3.00</pCOFINS>
              <vCOFINS>1.22</vCOFINS>
            </COFINSAliq>
          </COFINS>
        </imposto>
      </det>