 ተማሪዎቹም በተራቸው ሀገራቸውን ለማዘመን ከሀገር ሩሲያንና ቻይናን፣ ከርዕዮተ ዓለም ደግሞ ማርክሲዝምን እንደ ሮል ሞዴል ወሰዱ።
But the Walloon collieries became an international model, copied notably in Russia and China, and its mining colleges have trained engineers from all over the world.