Ju Xiaolin walked into a conference room packed with reporters on Monday night wearing a suit instead of the blue uniform and safety helmet he usually has on.

From left, four grassroots delegates to the Party Congress, Wang Xi, Ju Xiaolin, Ting Bateer and Yang Ruihui, address a news conference on Monday. Zou Hong / China Daily

Ju is one of the 26 migrant workers who are delegates to the Party congress.

"I am excited and honored to be a Party congress delegate," he said, "Because our Party and government have paid great attention to improving migrant workers' lives and work, I have such an opportunity to participate in the discussion about important Party affairs."

Ju was speaking at a news conference on the sidelines of the 18th Party Congress.

Ju, who stands at about 1.6 meters, is nicknamed "Little Giant" by his colleagues, not just because his family name "Ju" means huge in Chinese, but also because of his achievements at work.

In the past 25 years, the former village film projectionist from Northwest China's Shaanxi province has devoted his time to the country's railway development.

Ju, a senior technician working on overhead contact systems - which provide electricity - for First Engineering Co of the China Railway Electrification Bureau Group, has helped his company make about 80 technical improvements, which have generated profits of more than 10 million yuan ($1.6 million).