37
Installation, maintenance, and repair services for instrumentation and control systems for use in the water, wastewater, foundry, mining, manufacturing, oil, gas, automotive, pulp, paper, wood products, material handling, food and beverage, utility, power, rubber, pipeline, and forestry industries; maintenance of instrumentation and control systems for use in the water, wastewater, foundry, mining, manufacturing, oil, gas, automotive, pulp, paper, wood products, material handling, food and beverage, utility, power, rubber, pipeline, and forestry industries
40
Manufacture of instrumentation and control systems for use in the water, wastewater, foundry, mining, manufacturing, oil, gas, automotive, pulp, paper, wood products, material handling, food and beverage, utility, power, rubber, pipeline, and forestry industries to the order and specification of others
41
Educational services, namely, conducting classes in the field of operating instrumentation and control systems in the water, wastewater, foundry, mining, manufacturing, oil, gas, automotive, pulp, paper, wood products, material handling, food and beverage, utility, power, rubber, pipeline, and forestry industries
42
Design for others in the field of instrumentation and control systems for use in the water, wastewater, foundry, mining, manufacturing, oil, gas, automotive, pulp, paper, wood products, material handling, food and beverage, utility, power, rubber, pipeline, and forestry industries; testing of instrumentation and control systems for use in the water, wastewater, foundry, mining, manufacturing, oil, gas, automotive, pulp, paper, wood products, material handling, food and beverage, utility, power, rubber, pipeline, and forestry industries
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