BDF concrete thin wall canister style component is a kind of new CMOS tube, it is valid to solve the technique of making hole without taking out the central parts in the cast-in-place hollow floor.

• BDF砼薄壁筒体构件是一种比较新型的芯管,它有效解决了现浇空心楼板非抽心成孔技术,被广泛的应用于工业与民用建筑大跨度、大空间、大荷载的现浇空心楼板中。