Safety technology management application de yang jun (1 resultados)

paperback. Condición: New. Language:Chinese.Paperback.Pub Date:2023-02 Pages:140 Publisher:China Architecture & Building Press The attached lifting scaffold is an external scaffold used in high-rise building construction. It provides a construction operation platform for workers at heights and also provides peripheral safety protection for construction. It can climb or descend layer by layer along the standard layer of the building structure. Lift one layer from the bottom up to construct one layer of the main structur.…