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航天科技集团公司四院７４２２厂成功地研制出了丰远系列中央热水机组，并通过了陕西省环保局大气检测中心和陕西省技术监督局常压生活锅炉检测中心的鉴定，获得了陕西省生产消烟除尘装置制造许可证。该机组自销售３台后，后续合同陆续签订。计划１９９９年底销售１０台以上，?
The No. 7422 Factory of the Fourth Institute of Aerospace Science and Technology Corporation successfully developed the Fengyuan series of central hot water units, and passed the identification of the Atmospheric Testing Center of the Shaanxi Provincial Environmental Protection Bureau and the Normal Pressure Boiler Testing Center of the Shaanxi Provincial Technical Supervision Bureau, and obtained Shaanxi Province. Production smoke and dust removal device manufacturing license. After the unit was sold for three units, subsequent contracts were signed one after another. Plan to sell more than 10 units by the end of 1999?