精品文献
啤油管机
高压油管高压油管总成
relationship betwee n Gover nment a nd busi ness. The "two sessi ons", General Secretary of "Pro", "clear" the w ord succinctly sum marize d the new relationship betwee n Gover nment and busi ness, as pure politics, resha ping the political relati onship spe cified in t he dire ction. Distri ct leader s in ha ndl ing politi cal and busi ness relati ons, engage i n trading power for money, a nd fin
顶管机组生产油管的实践探索
顶管机组生产油管的实践探索
为了充分挖掘现有顶管机组的生产潜力,调整产品结构,提高经济效益,武钢集团汉阳钢厂对采用顶管机组生产J55、N80Ⅰ类钢级油管进行了有益的探索,介绍了J55、N80Ⅰ类钢级油管主要的生产技术难点、所采取的相应工艺技术措施和取得的效果。经检测及用户使用表明,产品的化学成分控制良好,几何尺寸精度高,力学性能优良,表面质量好。