Deck blasting metallurgical steel production in Hubei bridge blasting, shot blasting or pickling is to ensure that the mass production of iron and steel for high productivity and the use of mechanical or chemical joint to a process for phosphorus removal skin. Other alloy steel plate steel sheet, stainless steel sheet or the like, with the production, in the cold rolling step after annealing process must be carried out blasting or pickling treatment to ensure that the surface roughness and thickness accuracy cold rolled steel sheet. 1 pavement blasting machine working conditions, working surface roughness <20mm; no water and relatively dry; slope <25 ° 2, ambient temperature: -20 ℃ ~ 60 ℃; steel surface temperature is higher than the dew point above 3 ℃ 3, humidity : a, blasting the steel surface when relative humidity less than 90% b, Shot concrete when relative humidity less than 95% 4, altitude: 0 ~ 3000m; not operate the deck blasting, the bridge through the bridge in the rain and snow surface blasting, shot blasting processing is provided by Guangdong deck-Engineering Co., Ltd., Wuhan bridge. Wuhan bridge-Engineering Co., Ltd. (www.qiaolt.com) (www.qiaolt.com) was Wuhan, waterproof, moisture-proof material leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the bridge through the leadership with the staff warmly welcome all inquiries negotiations to create a better future through the bridge.