flowchart TB block3759quarrying-of-ornamental-and-building-stone-limestone-gypsum-chalk-and-slate["Quarrying of ornamental and building stone, limestone, gypsum, chalk and slate"] --> block3940manufacture-of-cement["Manufacture of cement"] block3759quarrying-of-ornamental-and-building-stone-limestone-gypsum-chalk-and-slate["Quarrying of ornamental and building stone, limestone, gypsum, chalk and slate"] --> block3940manufacture-of-cement["Manufacture of cement"] block3760operation-of-gravel-and-sand-pits-mining-of-clays-and-kaolin["Operation of gravel and sand pits; mining of clays and kaolin"] --> block3943manufacture-of-concrete-products-for-construction-purposes["Manufacture of concrete products for construction purposes"] block3940manufacture-of-cement["Manufacture of cement"] --> block3943manufacture-of-concrete-products-for-construction-purposes["Manufacture of concrete products for construction purposes"] block3940manufacture-of-cement["Manufacture of cement"] --> block3945manufacture-of-ready-mixed-concrete["Manufacture of ready-mixed concrete"] block4137water-collection-treatment-and-supply["Water collection, treatment and supply"] --> block3943manufacture-of-concrete-products-for-construction-purposes["Manufacture of concrete products for construction purposes"] block4137water-collection-treatment-and-supply["Water collection, treatment and supply"] --> block3945manufacture-of-ready-mixed-concrete["Manufacture of ready-mixed concrete"] block3940manufacture-of-cement["Manufacture of cement"] --> block3946manufacture-of-mortars["Manufacture of mortars"] block3760operation-of-gravel-and-sand-pits-mining-of-clays-and-kaolin["Operation of gravel and sand pits; mining of clays and kaolin"] --> block3946manufacture-of-mortars["Manufacture of mortars"] block4137water-collection-treatment-and-supply["Water collection, treatment and supply"] --> block3946manufacture-of-mortars["Manufacture of mortars"] block3940manufacture-of-cement["Manufacture of cement"] --> block4251wholesale-of-wood-construction-materials-and-sanitary-equipment["Wholesale of wood, construction materials and sanitary equipment"] block3945manufacture-of-ready-mixed-concrete["Manufacture of ready-mixed concrete"] --> block4251wholesale-of-wood-construction-materials-and-sanitary-equipment["Wholesale of wood, construction materials and sanitary equipment"] block4169construction-of-water-projects["Construction of water projects"] --> block4173demolition["Demolition"] block4164construction-of-bridges-and-tunnels["Construction of bridges and tunnels"] --> block4173demolition["Demolition"] block3760operation-of-gravel-and-sand-pits-mining-of-clays-and-kaolin["Operation of gravel and sand pits; mining of clays and kaolin"] --> block3940manufacture-of-cement["Manufacture of cement"] block3760operation-of-gravel-and-sand-pits-mining-of-clays-and-kaolin["Operation of gravel and sand pits; mining of clays and kaolin"] --> block3945manufacture-of-ready-mixed-concrete["Manufacture of ready-mixed concrete"] block3940manufacture-of-cement["Manufacture of cement"] --> block3929manufacture-of-refractory-products["Manufacture of refractory products"] block4159construction-of-residential-and-non-residential-buildings["Construction of residential and non-residential buildings"] --> block4173demolition["Demolition"] block4173demolition["Demolition"] --> block4143collection-of-non-hazardous-waste["Collection of non-hazardous waste"] block4166construction-of-utility-projects-for-fluids["Construction of utility projects for fluids"] --> block4173demolition["Demolition"] block4167construction-of-utility-projects-for-electricity-and-telecommunications["Construction of utility projects for electricity and telecommunications"] --> block4173demolition["Demolition"] block4170construction-of-other-civil-engineering-projects-nec["Construction of other civil engineering projects n.e.c."] --> block4173demolition["Demolition"] block4255wholesale-of-waste-and-scrap["Wholesale of waste and scrap"] --> block3945manufacture-of-ready-mixed-concrete["Manufacture of ready-mixed concrete"] block4255wholesale-of-waste-and-scrap["Wholesale of waste and scrap"] --> block3948manufacture-of-other-articles-of-concrete-plaster-and-cement["Manufacture of other articles of concrete, plaster and cement"] block3940manufacture-of-cement["Manufacture of cement"] --> block3948manufacture-of-other-articles-of-concrete-plaster-and-cement["Manufacture of other articles of concrete, plaster and cement"] block4150recovery-of-sorted-materials["Recovery of sorted materials"] --> block4255wholesale-of-waste-and-scrap["Wholesale of waste and scrap"] block3943manufacture-of-concrete-products-for-construction-purposes["Manufacture of concrete products for construction purposes"] --> block4251wholesale-of-wood-construction-materials-and-sanitary-equipment["Wholesale of wood, construction materials and sanitary equipment"] block3946manufacture-of-mortars["Manufacture of mortars"] --> block4251wholesale-of-wood-construction-materials-and-sanitary-equipment["Wholesale of wood, construction materials and sanitary equipment"] block4162construction-of-roads-and-motorways["Construction of roads and motorways"] --> block4173demolition["Demolition"] block4143collection-of-non-hazardous-waste["Collection of non-hazardous waste"] --> block4146treatment-and-disposal-of-non-hazardous-waste["Treatment and disposal of non-hazardous waste"] block4146treatment-and-disposal-of-non-hazardous-waste["Treatment and disposal of non-hazardous waste"] --> block4150recovery-of-sorted-materials["Recovery of sorted materials"] block4163construction-of-railways-and-underground-railways["Construction of railways and underground railways"] --> block4173demolition["Demolition"] block4255wholesale-of-waste-and-scrap["Wholesale of waste and scrap"] --> block3943manufacture-of-concrete-products-for-construction-purposes["Manufacture of concrete products for construction purposes"] block3945manufacture-of-ready-mixed-concrete["Manufacture of ready-mixed concrete"] --> block4251wholesale-of-wood-construction-materials-and-sanitary-equipment["Wholesale of wood, construction materials and sanitary equipment"] block4183floor-and-wall-covering["Floor and wall covering"] --> block4173demolition["Demolition"] block4251wholesale-of-wood-construction-materials-and-sanitary-equipment["Wholesale of wood, construction materials and sanitary equipment"] --> block4159construction-of-residential-and-non-residential-buildings["Construction of residential and non-residential buildings"] block4251wholesale-of-wood-construction-materials-and-sanitary-equipment["Wholesale of wood, construction materials and sanitary equipment"] --> block4162construction-of-roads-and-motorways["Construction of roads and motorways"] block4251wholesale-of-wood-construction-materials-and-sanitary-equipment["Wholesale of wood, construction materials and sanitary equipment"] --> block4163construction-of-railways-and-underground-railways["Construction of railways and underground railways"] block4251wholesale-of-wood-construction-materials-and-sanitary-equipment["Wholesale of wood, construction materials and sanitary equipment"] --> block4164construction-of-bridges-and-tunnels["Construction of bridges and tunnels"] block4251wholesale-of-wood-construction-materials-and-sanitary-equipment["Wholesale of wood, construction materials and sanitary equipment"] --> block4164construction-of-bridges-and-tunnels["Construction of bridges and tunnels"] block4251wholesale-of-wood-construction-materials-and-sanitary-equipment["Wholesale of wood, construction materials and sanitary equipment"] --> block4166construction-of-utility-projects-for-fluids["Construction of utility projects for fluids"] block4251wholesale-of-wood-construction-materials-and-sanitary-equipment["Wholesale of wood, construction materials and sanitary equipment"] --> block4167construction-of-utility-projects-for-electricity-and-telecommunications["Construction of utility projects for electricity and telecommunications"] block4251wholesale-of-wood-construction-materials-and-sanitary-equipment["Wholesale of wood, construction materials and sanitary equipment"] --> block4167construction-of-utility-projects-for-electricity-and-telecommunications["Construction of utility projects for electricity and telecommunications"] block4251wholesale-of-wood-construction-materials-and-sanitary-equipment["Wholesale of wood, construction materials and sanitary equipment"] --> block4169construction-of-water-projects["Construction of water projects"] block4251wholesale-of-wood-construction-materials-and-sanitary-equipment["Wholesale of wood, construction materials and sanitary equipment"] --> block4170construction-of-other-civil-engineering-projects-nec["Construction of other civil engineering projects n.e.c."] block3948manufacture-of-other-articles-of-concrete-plaster-and-cement["Manufacture of other articles of concrete, plaster and cement"] --> block4251wholesale-of-wood-construction-materials-and-sanitary-equipment["Wholesale of wood, construction materials and sanitary equipment"] block3929manufacture-of-refractory-products["Manufacture of refractory products"] --> block4251wholesale-of-wood-construction-materials-and-sanitary-equipment["Wholesale of wood, construction materials and sanitary equipment"] block3760operation-of-gravel-and-sand-pits-mining-of-clays-and-kaolin["Operation of gravel and sand pits; mining of clays and kaolin"] --> block3929manufacture-of-refractory-products["Manufacture of refractory products"] block3943manufacture-of-concrete-products-for-construction-purposes["Manufacture of concrete products for construction purposes"] --> block4278retail-sale-of-hardware-paints-and-glass-in-specialised-stores["Retail sale of hardware, paints and glass in specialised stores"] block4278retail-sale-of-hardware-paints-and-glass-in-specialised-stores["Retail sale of hardware, paints and glass in specialised stores"] --> block4159construction-of-residential-and-non-residential-buildings["Construction of residential and non-residential buildings"] block4278retail-sale-of-hardware-paints-and-glass-in-specialised-stores["Retail sale of hardware, paints and glass in specialised stores"] --> block4673undifferentiated-goods-producing-activities-of-private-households-for-own-use["Undifferentiated goods-producing activities of private households for own use"]