The distribution of basalt, thickness and the current state of development and utilization in the Dunhua area are described in this paper. In addition to the basalt stone, there is a new purpose, the production of basalt fibers. It is used with high quality in different fields. The development and utilization of foreign countries have for many years,
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址:北京市海淀区学院路29号 邮编:100083 电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700 |