product_labels/report/report_product_labels_wizard.xml

<?xml version="1.0" encoding="utf-8"?>
<openerp>
    <data>

        <report
            id="report_product_product_label"
            string="Product Label"
            model="product.product.label"
            report_type="qweb-pdf"
            file="product_label"
            name="product_labels.product_product_label"
        />

        <record id="report_product_product_label" model="ir.actions.report.xml">
            <field name="paperformat_id" ref="product_labels.paperformat_product_label"/>
        </record>

        <template id="product_product_label">
            <t t-call="report.html_container">
                <t t-foreach="docs" t-as="label">
                    <t t-foreach="label.label_lines" t-as="line">
                        <t t-foreach="range(int(line.quantity))" t-as="range_line">
                            <div class="page">
                                <div class="oe_structure"/>
                                <div class="row">
                                    <table style="width: 100%; border: 1px solid black; text-align: center;">

                                        <tr style="border: 1px solid black;">
                                            <td colspan="2">
                                                <h5><span t-field="line.product_id.name"/></h5>
                                            </td>
                                        </tr>
                                        <tr style="border: 1px solid black;">
                                            <td colspan="2">
                                                <h4><span>Precio: </span><span t-field="line.product_id.list_price" /></h4>
                                            </td>
                                        </tr>
                                        <tr style="border: 1px solid black;">
                                            <td colspan="2">
                                                <span t-if="line.product_id.ean13">
                                                    <img t-att-src="'/report/barcode/?type=%s&amp;value=%s&amp;width=%s&amp;height=%s' % ('EAN13', line.product_id.ean13, 400, 100)" style="margin-top: 3px; width:70mm; height:25mm"/>
                                                    <h5><span t-esc="line.product_id.ean13" /></h5>
                                                </span>
                                            </td>
                                        </tr>
                                    </table>
                                </div>
                            </div>
                        </t>
                    </t>
                </t>
            </t>
        </template>

    </data>
</openerp>