Blue Jeans production in China

Migrant workers squeeze into a train in Guangzhou city, China, on their annual holiday back home during Chinese New Year.
This picture is part of a photo and text story on blue jeans production in China by Justin Jin.
China, the “factory of the world”, is now also the major producer for blue jeans. To meet production demand, thousands of workers sweat through the night scrubbing, spraying and tearing trousers to create their rugged look.
At dawn, workers bundle the garment off to another factory for packaging and shipping around the world.
The workers are among the 200 million migrant labourers criss-crossing China
looking for a better life, at the same time building their country into a
mighty industrial power.