The company STSI Integrirani tehnički servisi d.o.o. has been delivered a special PPSM 39 semi-trailer for transporting poles or pipes, with a payload capacity of 26 tons. The semi-trailer was custom-designed according to the client’s specifications to perfectly meet their needs. It is equipped with SAF axles (3×9 t), including one lift axle and one steering axle. The loading platform is 12,400 mm long and features a 50 mm thick hardwood floor. The platform includes stake pockets (2×6 pcs) and lashing rings for easier cargo securing.

STSI d.o.o. is a company that deals with maintenance and construction of facilities. The company was founded in 2002 by separating from INA. It is primarily focused on maintenance and construction activities for oil and gas production and processing facilities from wells to refineries, as well as other facilities and facilities from the oil and petrochemical industry and other construction facilities. It is the largest company in the Republic of Croatia for maintenance work, providing a comprehensive maintenance service including all professions (mechanical, electrical and instrumentation, construction).