Sewage treatment consultancy services90492000-2Sewage services
Refuse and waste related services90500000-2Refuse and waste related services
Refuse disposal and treatment90510000-5Refuse and waste related services
Refuse collection services90511000-2Refuse and waste related services
Urban solid-refuse collection services90511100-3Refuse and waste related services
Household-refuse collection services90511200-4Refuse and waste related services
Litter collection services90511300-5Refuse and waste related services
Paper collecting services90511400-6Refuse and waste related services
Refuse transport services90512000-9Refuse and waste related services
Non-hazardous refuse and waste treatment and disposal services90513000-6Refuse and waste related services