タイトルまたは説明

Exterior sizes: **0***6**0mm Suitable for maximum door plank width of ***0mm and height of ***0, withstanding maximum door weight of *****0kg. Maximum opening angle of door plank is **6°ï¼Œuser may choose *0° or **6° positioning The quality has been authorized by the National Surveillance Department, Ant it can works normally; It also reach the Technologic standard of QB/T********9. Low-temperature, anti-icing hydraulic duable oil used, ensuring normal closing speed under **0° air temperature.