foreach ($Shipping->getOrderItems() as $OrderItem) {
            if (!$Order->isMultiple() && !$OrderItem->isProduct()) {
                continue;
            }
            // class categoryの生成
            $classCategory = '';
            /** @var OrderItem $OrderItem */
            if ($OrderItem->getClassCategoryName1()) {
                $classCategory .= ' [ '.$OrderItem->getClassCategoryName1();
                if ($OrderItem->getClassCategoryName2() == '') {
                    $classCategory .= ' ]';
                } else {
                    $classCategory .= ' * '.$OrderItem->getClassCategoryName2().' ]';
                }
            }

            // product
            $productName = $OrderItem->getProductName();
            if (null !== $OrderItem->getProductCode()) {
                $productName .= ' / '.$OrderItem->getProductCode();
            }
            if ($classCategory) {
                $productName .= ' / '.$classCategory;
            }
            if ($this->taxExtension->isReducedTaxRate($OrderItem)) {
                $productName .= ' ※';
                $isShowReducedTaxMess = true;
            }