6
Building materials of metal, namely, soffits, fascia, and composite panels made primarily of metal; portable buildings of metal; non-electric cables and wires of metal; metallic pipes; goods of metal, not included in other classes, namely, metal containers for the storage and transportation of goods
11
Water supply utensils for water purifying installations and bath installations, namely, faucets, water faucet spouts; water purification installations, namely, sewage drainage systems, waste water handling systems excluding waste water filters, infiltration and retention systems for rain water, and building drainage systems; sewage treatment plants; sewage disposal plants; sewage purification plants; sewage purification installations and sewage purification apparatuses excluding filters for sewage treatment and excluding air filters for use in pollution control areas and sewage disposal and waste management plant offices
19
Non-metal building materials, namely, composite panels composed primarily of nonmetal materials, particle boards, hardwood, decking, cementitious material for building purposes, concrete blocks, fascia and soffits; rigid non-metal pipes for building purposes; non-metal portable buildings
37
Building construction and repair; plumbing and roofing