Duowei TDD(Z) detachable steel truss floor deck is a type of combined formwork, made by processing load-bearing bars into steel bar trusses in the workshop and then connecting them to the bottom mold with plastic fasteners and self-tapping screws, to create a one-piece structure. After the poured concrete reaches the design strength, the bottom mold is removed, and the surface is finished with putty or paint to create a slab bottom effect that matches the appearance of a cast-in-situ reinforced concrete floor.
Duowei TDD(Y) detachable steel truss floor deck is a type of combined formwork, made by processing load-bearing bars into steel bar trusses in the workshop and then connecting them to the bottom mold with steel plate connectors and self-tapping screws, to create a one-piece structure. After the poured concrete attains the design strength, the bottom mold is removed, and the surface is completed to create either an industrial-style slab bottom effect by directly spraying finish paint or an appearance that aligns with that of a cast-in-situ reinforced concrete floor by leveling with light sticky gypsum before finishing with putty.

Duowei WJ® undetachable steel bar truss deck is a novel type of deck product, featuring a permanent bottom mold made of fiber cement board, which significantly reduces support formwork and entirely eliminates erecting formwork, making it ideal for projects that require a direct finishing on the slab bottom rather than using suspended ceilings.