37
Technical consultation in the fields of heat transfer system repair and maintenance; technical consultation and support services all in the field of the repair and maintenance of aviation hydraulic systems; collection of used, waste aviation fluid for recycling, incineration or disposal; collection of used, waste heat transfer fluid for recycling, incineration or disposal
41
Educational seminars, namely, providing seminars, classes and distributing course materials in connection therewith in the field of aviation fluids and aviation hydraulic systems and their design and maintenance, and heat transfer fluids and heat transfer fluid systems and their design and maintenance
42
Technical consultation in the field of heat transfer systems; heat transfer fluid selection and starting up heat transfer systems; design for others in the field of heat transfer systems; and technical support services, namely, troubleshooting of heat transfer systems problems done in person, by telephone or email, or online; design for others in the field of heat transfer systems; aviation fluid selection, aviation fluid analysis, engineering design consultation and technical consultation and technical support services, in connection with aviation fluids and aviation hdraulic fluid systems and in the nature of troubleshooting of aviation fluids and aviation hydraulic system problems done in person, by telephone, by email or online
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