a We highly value your comments, which will help improve our work. If you find any defect in our last shipment, please do not hesitate to let us know. We assure you of our cooperation and await your further orders ■ Yours sincerely◼ We highly value your comments, which will help improve our work. If you find any defect in our last shipment, please do not hesitate to let us know. We assure you of our cooperation and await your further orders. ◼ Yours sincerely