罗马尼亚铁路
After training at the Căile Ferate Române (CFR) school, he worked in a CFR foundry in Galați. In 1932, Apostol met Gheorghe Gheorghiu-Dej, and became involved in the communist underground. He joined the Party in 1934 and became its link with the railway trade unions and minor left-leaning groups in Galați.