<div class="mall-product__properties">
    {% for entry in item.grouped_properties %}
        <h3 class="mall-product__properties-heading">{{ entry.group.name }}</h3>
        <hr>
        <div class="mall-three-columns row">
            {% for value in entry.values %}
                <div class="mall-column col-12 col-lg-4 mb-4">
                    <p>
                        <strong>{{ value.property.name }}</strong><br>
                        {{ value.display_value | raw }} {{ value.property.unit }}
                    </p>
                </div>
            {% endfor %}
        </div>
    {% endfor %}
</div>