国产一级a在线观看97,日韩中文字幕在线不卡一区,成人 视频免费观看网站,国产成人精品二三区麻豆,91久久国产综合久久91

                                                      1#管橋鋼結(jié)構(gòu)安裝

                                                    1#管橋下泵基礎(chǔ)混凝土施工

                                                           4#管橋鋼結(jié)構(gòu)安裝

                                                   6臺罐基礎(chǔ)底板下料及罐壁焊接

                                                                 T40基礎(chǔ)鋼筋螺栓安裝

                                                           T-103設備就位找正

                                                      V-507基礎(chǔ)混凝土施工

                                                     變電所9.8m層混凝土

                                                         構(gòu)102鋼結(jié)構(gòu)安裝

                                                         構(gòu)401鋼結(jié)構(gòu)下料

                                                     建3混凝土施工

                                              焦炭塔17m、12m層勞動保護安裝

                                                           焦炭塔組對焊接

                                              控制室7.9m層梁板模板安裝

                                                    樓電梯間20m以下混凝土施工