What a factory light show!

HARBIN, Sept. 7, 2019 (Xinhua) -- Light and shadow photography outlines the labor scene of industrial workers in northeast China's Heilongjiang Province.

People work at a factory of China First Heavy Industries in Qiqihar, Aug. 28, 2019. (Xinhua/Wang Jianwei)

A worker welds components at a factory of China First Heavy Industries in Qiqihar, Aug. 27, 2019. (Xinhua/Wang Jianwei)

A worker welds components at a factory of China First Heavy Industries in Qiqihar, Aug. 29, 2019. (Xinhua/Wang Jianwei)

A worker welds components at a factory of Harbin Turbine Company Limited in Harbin, Sept. 3, 2019. (Xinhua/Wang Jianwei)

Laborers work at a factory of China First Heavy Industries in Qiqihar, Aug. 28, 2019. (Xinhua/Wang Jianwei)

A worker welds components at a factory of China First Heavy Industries, Aug. 29, 2019. (Xinhua/Wang Jianwei)

A laborer works at a factory of China First Heavy Industries in Qiqihar, Aug. 28, 2019. (Xinhua/Wang Jianwei)

A worker welds components at a factory of Harbin Electric Machinery Company Limited in Harbin, Sept. 2, 2019. (Xinhua/Wang Jianwei)

A worker is seen at a boiler production factory of Harbin Boiler Company Limited in Harbin, Sept. 4, 2019. (Xinhua/Wang Jianwei)

Workers weld components at a factory of Harbin Electric Machinery Company Limited in Harbin, Sept. 2, 2019. (Xinhua/Wang Jianwei)

A laborer works at a factory of China First Heavy Industries in Qiqihar, Aug. 28, 2019. (Xinhua/Wang Jianwei)

A worker welds components at a factory of Harbin Electric Machinery Company Limited in Harbin, Sept. 2, 2019. (Xinhua/Wang Jianwei)