Consists of vertical standards and cross ledgers. The quick plate is punched from steel plate, the plug pin is steel casting. This new type scaffold is quick and convenient to mount & dismount without any spare parts so as to save time, labour and materials, and safety is ensured. Vertical props and horizontal props are tightly locked by ledger plug pins and plates, and these will stabled supports structure firm and steady. Advantages: 1.Vertical props with sleeves can be connected for any suitable height to match different sizes rooms. 2.National standard Q235 steel welded automatic. 3.Electrophoretic painted for surface treatment. 4.Light weight, carry easily, assembling quickly. 5.Replace coupler, not easy to lose, cost saving. 6.Make construction site clean and tidy. 7High recycling rate.