On September 19, commander of spot of project of overhaul of a blast furnace instruction, the new roof that weighs 2200 tons is reliable in appoint locally perch, this indicates new roof whole installs an one blast furnace to succeed.
In installation of new roof of one blast furnace, bao Gang uses whole to install technology for the first time, this craft includes the ground to carry, the working procedure such as the slippage in integral promotion and sky. To ensure installation goes on wheels, group of project of blast furnace overhaul, Bao Ye builds cooperation of project ministry and relevant unit concerted effort, did much research work and imitate drill, undertook to each link and relevant equipment close check and determine.

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