Accounting services; Tax preparation; Tax advisory services

Providing information relating to material treatment; processing of metal tubes and pipes; forging, surface treatment, machining, threading, and metal plating tubes and pipes or their accessories; assembly by screwing or welding of metal goods for others; assembly of metal tubes and pipes for others; rental of machines for assembling tubes and pipes; forging, molding, machining, and additive manufacturing for others of metal and non-metal parts that are tubular or not tubular; mechanical, che...

Organization and conducting of educational colloquiums, conferences and seminars regarding the use of metal tubes and pipes for transporting liquid, gaseous fluids or petroleum, assembly devices for metal pipes and tubes, drilling and operating oil, gas and geothermal wells, welding equipment and welding of metal pipes and tubes, mechanical applications of metal pipes and tubes, building and construction applications of metal tubes and pipes, and the use of metal tubes and pipes for thermal p...