42 Technical consulting, engineering and design for others in the field of process controls, refrigeration controls, control systems and thermal components, mechanical systems and compressors; Technical consulting, engineering and design for others in the field of refrigeration systems and low temperature facilities and facilities requiring industrial refrigeration, cooling and chilling; Technical consulting, engineering and design for others in the field of chilled water, refrigeration, hot water, steam, compressed air, water treatment and power generation systems for others; Technical consulting, engineering and design for others in the field of power and utility system for others; Technical consulting services, namely, mechanical integrity programs and inspections, procurement of equipment and project management, operations and maintenance and safety compliance; Technical supervision and inspection in the field of process controls, refrigeration controls, control systems and thermal components, mechanical systems and compressors; Technical supervision, and inspection in the field of refrigeration systems and low temperature facilities and facilities requiring industrial refrigeration, cooling and chilling; Technical supervision and inspection in the field of power and utility system for others; Technical supervision and inspection in the field of chilled water, refrigeration, hot water, steam, compressed air, water treatment and power generation systems for others; Technical supervision and inspection in the field of refrigeration services and audits on low temperature and thermal systems