为沟通设计绘图用品的设计、开发、市场供应等方面的信息交流和服务,由上海地区的科研设计单位、大中型工厂设计部门和设计绘图用品专业生产厂等单位参加的 Communication and service for the design, development, market supply, and other aspects of designing, developing, and marketing supplies for communication are organized by scientific research and design organizations in Shanghai, large and medium-sized plant design departments, and specialized production plants for designing and drawing supplies.