(1) steel structure span: 20 meters or more;

(2) The weight of steel structure: over 500 tons;

(3) steel structure construction area: more than 5000 square meters;

(4) grid project side length: 20 meters or more;

(5) grid structure weight: 100 tons or more;

(6) grid structure construction area: 1,000 square meters or more.

If you need detailed cost list, pls kindly send us the floor plan and approval drawing

Thanks in advance.