The registered address of chengdu tefeng construction machinery limited is at the 18th floor of the third river road, on the streets of chengdu city, and the registration authority is the market supervision authority of chengdu city, represented by zhou yuanfan, which operates in the areas of rental of engineering machinery, rental of construction machinery and equipment, rental of lifting equipment, construction of stone works (except for projects prohibited by law, administrative regulations, which are not allowed until permission is obtained)。