ICS91.100.50Q24华人民共和国国家标准GB/T23261—2009石材用建筑密封胶Buildingsealantsforstone(ISO11600:2002Buildingconstruction—Join...
ICS91.100.50Q24GB/T23261—2009Buildingsealantsforstone(ISO11600:2002BuildingconstructionJointingproducts—Classificationandrequire...