Building control area not less than 50 square metres (including meeting room, size of no less than 24 square meters and Office of space systems, transportation officers, no less than 24 square meters by then)
Building control space of not less than 50 square meters (including a minimum room size of 24 square meters with a working staff walk the space of not less than 24 square meters, held by then).
Building construction control area of not less than 50 square meters. Overall size (meeting not less than 24 square meters. And the office of the staff travel system area not less than 24 square meters, too).