Discusses the selection line methods of convey coal pipe of long distance, from the angles of selection line principle, and the basic data to collect, etc.

Coating material of epoxy coal tar has been prolonged in the fields of corrosion protection for long distance pipeline, metal storage tank and oil field facilities.

The industrial transport corridor for coal transportation to be demolished through blasting was located in very complicated surroundings, which was adjacent to the main pipeline of natural gas.