1·Also, after years of use, the weatherstripping wears down and air leakage increases as the door ages.
此外，使用多年以后，在风雨穿下来，冷凝器当门的空气泄漏年龄的增加。
2·Building hardware - gaskets and weatherstripping for doors, Windows, shutters and curtain walling - part 2: linear compression force test methods.
建筑五金。门窗百叶窗和幕墙用密封垫和挡风雨条。第2部分：线性压力测试方法。