RDER International Investment Trade Co., Ltd. Is an export, import-oriented set of product design, production, sales and service in one integrated enterprise. Company based in Shandong, China, relying on logistics and port - Qingdao, easier to export and import. The company products; wet curtain paper, wet curtain wall cooling system, cooling fan, animal fan, flowers, fans, circulation fans, no power roof ventilators, loudspeaker rope duct, plumbing radiators, coal-fired heater, plumbing Heaters , fuel heater, automatic digital temperature control system and other greenhouse equipment. We have highly qualified staff team, strong product development capabilities, expertise, and targeted design, fully meet the needs of users in all respects. Our products are subject to rigorous performance testing dynamic balance, with reliable quality, elaborate design, superb technology, sophisticated manufacturing and a full range of services, has won the attention of old and new customers. Company passed ISO9001: 2000 international quality system certification, China 3C Certification, EU CE certification. Currently, products are sold to Asia, Europe, Africa, South America, more than 80 countries and regions.