The JJG117-91 flat panel verification procedure stipulates that when determining the flatness error value, it is necessary to consider the degree of coincidence of the repeating verification point flatness. This is of great significance for finding the gross error of the verification data, correctly judging the reliability of the verification result, and improving the quality of the plate verification. In the current actual verification work, some conceptually incorrect understanding and wrong practices hinder the implementation of the verification procedures, so it is necessary to emphasize the correct calculation of the degree of coincidence and flatness.
Tri-proof lamp is a lamp that can effectively resist heavy rain, strong waters jets, and dustproof, which makes it suitable for outdoor use in various weather conditions.
Commercial Interior Lighting,Tri Proof Light,Sensor Tri Proof Led Light,Touch On Off Tri Proof Lamp
Henan Idui Import and Export Trade Co., Ltd , https://www.acesunraylight.com