He met Mao Zedong , Zhou Enlai and Enver Hoxha on visits to China and Albania .
Birch continued to help to organise various strikes , including the 1971 Ford strike .
Birch met Mao Zedong , Zhou Enlai and Enver Hoxha on visits to China and Albania .
Birch continued to help to organise various strikes , including the 1971 Ford strike .