国产精品无码MV在线观看_2020国产精品永久在线观看_国产精品特级毛片一区二区三区_久久99热这里只有精品国产

&From April 24 to 26, 2017, the experience exchange meeting of 2017 provincial excellent QC group activities in construction industry was held in Weifang, attended by Vice stationmaster of Shandong Construction Engineering Quality Supervision General Station, Ji Lun, deputy director of Weifang housing and Construction Bureau, Cui Huadong, etc. Xu pengqiang, chairman of the group, was invited to attend the exchange activity.     In this experience exchange meeting, 156 achievements were released and exchanged, and 4 achievements declared by the group company were all shortlisted. Among them, the research and application of tower crane new attached wall pole and the improvement of one-time installation qualification rate of prefabricated reinforced truss concrete laminated plate were recommended to China Construction Industry Association for release and exchange; the research on adjustable width stair formwork System is recommended to China Construction Enterprise Management Association for release; R & D and application of prefabricated temporary road is recommended to Shandong Quality Association for release (it is reported that at present, the provincial QC achievements are not subject to awards and level confirmation).