翻译成英语：Q235优质钢材主杆100*100*3.5 底座150*150*3.5 壁厚3.5 法兰350*350*5mm，含预埋件

Q235 high-quality steel main rod 100*100*3.5, base 150*150*3.5, wall thickness 3.5, flange 350*350*5mm, including embedded parts.