COSCO Shipping Engineering Group Co., Ltd. (hereinafter referred to as COSCO Shipping) was established in June 2001. It is a large-scale enterprise group under COSCO Shipping Group Co., Ltd., which is mainly engaged in the construction, modification and repair of large ships and marine engineering, and integrates ship supporting.

　　COSCO Shipping has two state-level enterprise technology centers and several provincial technology centers, the R & D center with the highest product R & D level, the most advanced R & D equipment and facilities, and the most extensive research field in China's offshore engineering equipment industry. It has set up academician workstation with more than 1600 professional designers. Many independent innovation technologies have won domestic and foreign awards and invention patents. 2011 In 2014, it won the 16th China Patent Gold Award.

　　Since 2012, we have maintained a good cooperation relationship with Ma Li steel shot. We have successfully purchased G18 angular steel sand and S460 alloy cast steel shot for workpiece rust removal for many times. It is a great honor to cooperate with COSCO, a large listed group. Ma Li steel shot will work harder and bring more excellent products into the enterprise.

　　HP steel shot S460 alloy cast steel shot, with fast cleaning speed, good anti elasticity, long service life and low consumption; the hardness of steel shot is moderate, toughness is good, and it can be recycled; strict quality management process makes the quality of steel shot reach the best effect. Applicable equipment includes: q3110 roller shot blasting machine, q326 crawler shot blasting machine, Q378 hook shot blasting machine, large through shot blasting machine, steel plate pretreatment line, cleaning of sand blasting room, etc.; the company's products are carefully protected by double-layer coating, moisture-proof, waterproof and anti-corrosion packaging bags.

　　Horsepower steel shot G18 angular steel sand is broken from alloy steel shot, hypereutectoid steel water chestnut shape, with characteristics of high hardness, strong toughness, strong impact resistance, thorough cleaning of workpiece, etc., it can be used repeatedly, and always maintain the angular angle in the process of sand blasting. Its main applications include: surface treatment before spraying alloy castings, spring strengthening, sand cleaning and rust removal of small stainless steel castings, which are widely used in bridge and ship industries.