防风卷帘工程

2026-03-27
防风卷帘工程

工程图集

project image



没有了
ddEventListener('scroll', () => { if (window.scrollY > 20) { navbar.classList.add('scrolled'); } else { navbar.classList.remove('scrolled'); } }); }); dy> ddEventListener('scroll', () => { if (window.scrollY > 20) { navbar.classList.add('scrolled'); } else { navbar.classList.remove('scrolled'); } }); });