荣获国家专利局专利证书:实用新型第740号本尺依据国家颁发施工及验收规范,由一把套尺及滑尺组编而成。集多种常用规范数据于一尺,直观性强,简便实用,初小文化一用即懂,携带方便,可常放衣袋备用,对保证工程质量及提高施工人员技术素质功效显著。自向全国发行以来,深受建筑 Won the Patent Certificate of the National Patent Office: The utility model No. 740 is produced by a set of ruler and slide ruler according to the national standards for construction and acceptance. Set a variety of commonly used specification data on a foot, intuitive, simple and practical, small and medium-sized culture that is easy to use, easy to carry, you can always put a spare pocket, to ensure the quality of the project and improve the technical quality of construction workers and significant effect. Since its release to the country, it has been deeply influenced by buildings.