In view of the complication of technology and low stability and low working efficiency in the manual testing of finished product rate of coating-glass for special cars,this paper studies the laser-based automatic testing method.

Innovative development of specially-designed tubing with high strength for well testing services;

In recent years, with the rapid development of our country’s national economy, petroleum chemistry industry, as our national economy blood, increases greatly, which brings good opportunity for the rapid development of special oil industry, even if it is now in an unfavorable position in petroleum chemistry industry.

This is a brief survey on domestic production and market of several grades of special kerosene type solvent oil,including smell-less kerosene,aluminium profile and foil mill oil and printing/dyeing oil etc.