（DCS系统）和（机器人系统）及（大型伺服控制系统）备件大卖！叫卖！特卖！卖卖卖！
Zheng recalled the day Ma stopped at his stall. The artist was impressed with Zheng's handmade fans, since most fans available at the time were mass produced in factories. Wanting to lend his support to Zheng's business, Ma occasionally would write calligraphy on Zheng's fans. He also introduced Zheng to Hong Juntao, the late veteran fan maker and collector. From Hong, Zheng learned how to make fans using professional tools and techniques.

Deeper understanding

With the convenience that foldable fans brought, they quickly replaced other hand fans during the Ming Dynasty (1368-1644). As calligraphy and paintings were added to these fans, they also evolved to become a symbol of the literati. For centuries, the production of handcrafted fans was a stable and healthy industry in China.

However, that changed during the Cultural Revolution (1966-76), when a large percentage of craftsmen left the tradition behind, according to Zheng. This was a huge blow to handcrafted fans. A further blow hit the entire fan industry when a series of fan factories went bankrupt during the 1990s.

The rarity of experts who can make well-made handcrafted fans has influenced their price, as well as made them the target of collectors.

"Northern China and southern China have different ways of making fans," Zheng told the Global Times. "While Beijing has the largest number of people collecting folding fans, the city has the lowest number of people able to make them."

While Zheng was Hong's only student, he has 13 of his own. He also plans to take on six more this week to pass down Hong's northern style of fan-making. This increased number of people looking to learn this traditional handicraft is an indicator that the market for these fans is growing again.

According to a report from artron.net, the collection market for folding fans has become very hot in recent years.

"The highest price for a folding fan a decade ago would have been around 1,000 yuan. Now a very common fan made from mottled bamboo can sell for more than 10,000 yuan, while the boutique ones can go for several million yuan each," the report noted, adding that prices for folding fans have increased significantly over the past two years despite the recent economic slowdown.

Zheng, however, is not a fan of collectors who are looking to capitalize on rising prices.

"A fan is for fanning oneself and so you can enjoy the calligraphy and paintings on them while you use it. It is not something to be used for speculation," he said, explaining that in his opinion collectors do not understand the true value of this cultural heritage.

"There was a time when the only reason I made fans was to make more money so I could live a better life," Zheng admitted. "But over time I discovered the deep culture and artistic value of these fans. I now want to share this with the people of today."

Zheng has applied for handcrafted foldable fans to be recognized as an intangible cultural heritage. In 2015, he also founded the Beijing Fan Art Association, which gathers a number of veteran craftsmen who specialize in painting and calligraphy on fans, as well as bamboo engraving.

Nowadays, Zheng only comes into the shop on the weekends to take care of matters concerning the association. The rest of his time is spent in his studio in Langfang, Hebei Province, roughly 50 kilometers south of Beijing, where he can indulge his passion for making fans.