Turnover for China's 3-D printing market is most likely to reach 4 billion yuan ($642 million) by the end of this year, double that of last year, said sources from industry organization China 3-D Printing Technology Industry Alliance.

Low-end desktop printers are still the major revenue contributors. "The country has added about 50 3-D printer manufacturers over the past year and most of them provide low-precision devices," said Luo Jun, chief executive of the alliance.

Rapid growth in the low-end printer market may cause intense competition next year, Luo said.

"The absence of a proper profit model is the major obstacle hindering the 3-D printing industry right now, and it takes a long time to educate traditional manufacturers about 3-D techniques," he said.

Markets that require high customization involvement are the most suitable areas for 3-D printing technology, said Jack Keverian, professor emeritus of Philadelphia-based Drexel University.

"The technology was not designed for mass production since its birth more than 20 years ago. Chinese firms should be aware that 3-D printing is not the best solution to make business card cases," Keverian said.

Keverian also advised continuous investment in the sector, warning off investors seeking quick returns.

"Patience and long life are critical success ingredients for printer vendors in China," said the 85-year-old industry veteran.

Support from the government will help top-tier players gain an advantage while competing on the global stage, said experts.

Officials from the Ministry of Industry and Information Technology pledged to announce a "long-term route map" for 3-D printing market as early as 2012.

3D-printed houses built in Shanghai	3D printing - a new favorite in2014 CES