日批在线视频_内射毛片内射国产夫妻_亚洲三级小视频_在线观看亚洲大片短视频_女性向h片资源在线观看_亚洲最大网

US EUROPE AFRICA ASIA 中文
Business / Industries

Wuzhou's gem industry honed by time

By Li Yang (China Daily) Updated: 2014-02-18 07:16

Wuzhou's gem industry honed by time

Turning point

In 2005, Wuzhou produced 8 billion artificial gemstones, accounting for 40 percent of the world's total. But the profit margin plunged soon after. The cost of polishing a 0.5-millimeter artificial diamond fell from 0.11 yuan in 1990s to 0.03 yuan in 2005. With new automatic equipment, the price now stands at about 0.01 yuan.

Wuzhou's gem industry honed by time

Jewelry exhibition dazzles in Beijing

Wuzhou's gem industry honed by time

2013 Beijing Intl Jewelry Expo kicks off

The turning point was the introduction of the numerically controlled automatic polishing machine.

In 2011, Chen Bingzhong, a professor of mechanical forging at Wuzhou College, invented the machine, which achieved a tenfold increase in production efficiency.

With the advent of the machine, a single worker's daily output rose from 100 stones to about 900. In addition, the standard 57-facet gemstones polished by the machine reflected greater accuracy in terms of size and refraction index.

The number of workers in the industry declined to one-fifth of its record high even as annual gemstone output of the city skyrocketed to 100 billion. Yet the overall production value remained at 3 billion yuan, the same level as in 2005.

Wuzhou is now the world's largest wholesale market of synthetic gemstones.

"The technology advancement and renminbi's 35 percent appreciation against the US dollar since 2005 has made the profit margin so meager that I have had to resort to the online trade to save marketing costs," said businesswoman Meng.

Today, Wuzhou has 1,000 family workshops, 150 processing enterprises, 10 raw materials suppliers and 30 equipment makers.

After the synthetic gemstone industry disappeared in Hong Kong and Taiwan in the 1980s and in Guangdong in 1990s, Thailand and India also saw their traditional local industries quickly shrinking.

Palsani Laxman, a buyer from Jaipur, India, said: "We need not check the quality of a Wuzhou gemstone. Their production level and efficiency is much higher than the other producers."

"Since Wuzhou's equipment is now the most advanced, Wuzhou is the main supplier of cubic zirconia for many famous brands, such as Swarovski from Austria," said Liang Sujia, a gemstone businessman in Wuzhou since the 1980s.

Wuzhou's gem industry honed by time

Wuzhou's gem industry honed by time

China's diamond trade rebounds in 2013

Diamonds are this nation's best friend

Hot Topics

Editor's Picks
...
...
主站蜘蛛池模板: 久久视频免费观看 | 成人黄色网址在线观看 | 亚洲午夜在线播放 | 成人免费黄色 | 色99999| 日韩精品视频网 | av观看在线免费 | 欧美日韩一级二级三级 | 国产综合在线播放 | 国产欧美在线播放 | 久久机热这里只有精品 | 欧美成人精品一区二区三区在线看 | 超碰97人人爱 | 午夜aa| 成人午夜在线视频 | 91色在线视频 | 免费成人深夜在线观看 | 又紧又大又爽精品一区二区 | 日本久久精品 | 成人日批视频 | 欧美人与性动交α欧美精品 | 国产成人综合网 | 三区在线 | 你懂的视频在线播放 | 亚洲国产中文字幕在线 | 免费在线观看中文字幕 | 国产福利在线播放 | 精品免费久久久 | 青青免费在线视频 | 激情五月综合 | 久久久久久中文字幕 | 亚洲不卡一 | 国产chinese男男网站大全 | 日韩国产一区 | 日本美女在线视频 | 欧美日韩v | 亚洲欧美日韩免费 | 青青青草视频在线观看 | 欧美做受高潮1 | 国产精品a级 | 国产成年妇视频 |