Heilongjiang Province 1:3 million Building Materials Industry Distribution Dataset (1976)

a. Data content (data file/table name, including observation index content) Data file name: Heilongjiang Province 1:3 million Building Materials Industry Distribution Dataset (1976) Main content: Distribution of building materials industry_ Data entity.shp b. Construction purpose Understand the distribution and supply of building materials in Heilongjiang Province, and provide basic data for fields such as construction, military industry, environmental protection, high-tech industry, and people's lives. c. Service object Technical personnel engaged in construction, military industry, environmental protection, and happy technology industries. d. Time range of data The data is from 1976. e. The spatial range and projection method of data Space scope: Heilongjiang Province.