Stable & Reliable Concealed Pivot‑Door Hardware Accessories

Exquisitely crafted concealed door‑closing mechanism with freely adjustable closing speed and smooth, well‑coordinated dual‑speed switching. Equipped with an integrated speed‑control piston and multi‑direction fine‑tuning structure; routing grooves on thin doors will not crack the edges. Built‑in 90‑degree closing positioning enables smooth and stable opening and closing. Compatible with all types of interior doors, delivering stable and durable long‑term performance.