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in the oil before the rolling surface should be wiped clean. <br /> 3 in order to rust, bearing parts in addition to the steel roller and rolling surface, the rest should be coated with paint protection. <br /> 4 of the fixed bearing should check the bolt strength, support plate should be flat and tighten the bolt together closely, timely. <br /> The above content according to the actual work of the students in order to meet the problems, for reference, if there is a problem, please communicate in a timely manner.</p></div> </div> <div class="cpny_right_02"> <div class="cpny_right_02_01"> <img src="/skin/default/images/newsimgen.jpg" /> </div> <div class="cpny_right_02_02"> <ul> <li><img src="/skin/default/images/jia.jpg" /><a href="/zxdt1/hyxw1/2016-12-09/991.html">Airbus: crack free connection safety</a><span>2016-09-28</span></li> <li><img src="/skin/default/images/jia.jpg" /><a href="/zxdt1/hyxw1/2016-12-09/990.html">Experts interpret A380 wing crack: 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