一区二区三区四区黄色片|美国亚洲明星无码|国外一级黄色电影|专区一专区二亚州人妻|成人av教育小说在线观看|中华黄色免费精品在线一区二区三区|免费一级A片在线观看视频|9999精品色片视频|精品九九少妇亚洲论片|国产乱╳╳aⅴ毛片

&On February 9, 2020, Doha company of the group successfully passed the ISO management system certification and obtained the corresponding certificates. &This audit focuses on six departments of Doha company, namely, operation Department, procurement department, finance department, personnel department, production safety department and quality technology department, and reviews the quality, safety and other aspects of the construction site. The audit team conducted a comprehensive and in-depth audit and evaluation of the company's management system through discussion with the company's management, construction site inspection and data verification, and agreed that the operation of the Doha company's management system met the certification standards and passed the certification.