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1. 该系列榴莲视频在线观看主要应用于平开窗，符合中国JG/T128-2007《建筑榴莲视频IOS榴莲视频下载件撑挡》标准，反复启闭15000次后不失效
2. 滑轨采用专业成型机一次成型，风撑各杆件采用高精度冲床进行一次性成型保证了制作精度和质量
3. 通过调节黄铜螺钉可调节摩擦力的大小，黄铜螺钉采用大螺帽设计，操作简单实用
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