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Quality control refers to all the activities that define the quality policy, objectives and responsibilities and make them realised through quality planning, control, assurance and improvement in the quality system, which is a system that integrates the activities of developing quality, maintaining quality and improving quality in all departments of the company in order to be able to carry out market research, design, manufacture and after-sales service at the most economical level and taking into account the full satisfaction of customers. An effective system. The management activities include the development of a quality management system, quality control, quality acceptance and assessment and other related elements.

Quality control is carried out throughout the whole process of project implementation. When the A-side personnel are unable to carry out quality control themselves due to time, space or other factors, they need a technical management team with appropriate engineering service experience, familiar with the project process, and with the concept of quality, schedule, safety and other risk control to help them carry out control, so as to cope with the project implementation process such as laws and regulations, construction progress, cost and resource constraints and other complex situations.

NOA provides quality control for the entire process, from material quality control to engineering quality control and post-delivery product evaluation, to ensure that all work is carried out in accordance with requirements from the preparatory stage of the project and to avoid project risks such as quality incidents, delays and cost overruns.