A building is seen under maintenance as its facade is covered with bamboo scaffolding and a green net while commerce street signs are visible to the public

building maintenance bamboo scaffolding commercial street signs construction scaffolding building scaffolding street sign shop sign bamboo scaffolding series maintenance apartment maintenance housing recycle bamboo green construction tool architecture built business development engineering equipment high industrial industry structure urban work worker hong kong asia constructing economy finance safety china constructions industry china housing bubble housing bubble world recession world economy chinese recession economic crisis construction workers fixing building repairance workers chinese workers working conditions green background