精品91一区二区三区_国产亚洲日本一区二区三区_又硬又粗进去爽A片免费_国产成人精品曰本亚洲77美色_国产片婬乱一级毛片a_欧美xxxx做受欧美gay,国产欧美在线不卡_国产精品一二三区日韩免费_狠狠久久五月精品中文字幕_老子影院午夜伦手机不四虎卡_人妻老妇乱子伦精品无码专区_国产成人手机在线视频在线观看

&Nbsp; & nbsp; & nbsp; the company has the qualification of a second-class enterprise specialized in mechanical and electrical equipment installation contracting, and can undertake the installation of equipment, lines and pipelines of general and public and civil construction projects with an investment of 15 million yuan or less, the production and installation of transformer and distribution power stations with an investment of 10 kV or less, and non-standard steel components. The company has two professional installation engineering branches. Representative projects include: water, electricity, heating, air, boiler, cold station and other supporting installation projects of construction projects undertaken by the group; chemical equipment installation project of Weifang chemical fertilizer plant; equipment and pipeline installation project of Weifang sewage treatment plant; 35t boiler installation project of Weifang thermal power company, etc.

                                    

&Nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; installation of sub divisional electric heating installation in Construction Engineering