Steel pipe light beam within the scope of this series is mainly used forinner wall of steel pipe polishing, shot blasting, the diameter of 50 ~Phi 700mm in diameter, it is the use of continuous work, shot blastingmachine, shot, quartz sand is sprayed onto the inner wall of the steeltube parts, so to achieve the purpose of cleaning; Phi 700 ~ Phi 3000mminner tube diameter range, it is the efficient use of shot blastingmachine thrown projectile of break pipe inner surface oxide scale, rustlayer and debris, to obtain a fine surface of workpiece is improved thetensile and compressive strength for inner surface coating protectionincreased adhesion to corrosion, protection tube, prolong service life.