What are these building materials? https://t.co/uOkVvUtTlN
Central Region
[]
CHINA SQUARE
['building', 'material', 'https://t.co/uokvvuttln']
['building']
what these building
building materials
  [
    {"relatedness": False, "type": "none", "explanation": "This post is not related to maintenance report feedback for public flat houses."},
    ]






