久久久无码人妻精品无码_6080YYY午夜理论片中无码_性无码专区_无码人妻品一区二区三区精99

Sponsored by Hubei Tourism Administration
 

3-D printing development may be 'problematic'

By Cheng Yingqi (China Daily)

Updated: 2013-08-13

Although its application in the technology sector has given 3-D printing a high profile, a number of Chinese entrepreneurs and investors have expressed a pessimistic view of its likely development in the near future.

"Some people have said that 3-D printing will bring about a manufacturing revolution, but that's an exaggeration," said Ru Fangjun, founder of HangZhou Xundian Technology Co, which deals in 3-D printing devices in Hangzhou, Zhejiang province.

Ru has been keeping an eye on the prospects for 3-D printing for two years. In 2011, he opened a 3-D photo studio in Hangzhou, producing models for clients at a price of 2,000 yuan ($326) per item. Business was slow, though, and so Ru closed the studio after just eight months.

3-D printing development may be 'problematic'

Children use 3-D printers at a science fair hosted by a company in Wuhan, Hubei province. Chu Lin / for China Daily

"On average, I only had one deal a week, which was far from enough to make ends meet," he said. Even though Ru wasn't doing much business, a large number of people still visited his premises. However, they weren't interested in printing their 3-D models, instead they were searching for investment opportunities.

"Most of them were wealthy businessmen who were interested in the concept of 3-D printing but didn't know much about the industry. I received a lot of visitors. In some extreme cases, more than 20 a day," said Ru.

As a result, he changed course and started a new business, developing and selling 3-D printers, a far more profitable venture.

"It is a promising market, but the price advantages it offers will only beat traditional manufacturing modes if the production quantity is small and the structures made are complex," said Ru.

One typical application of 3-D printing that Ru mentioned is the manufacture of dentures. The process is well suited for this purpose, because the goods are individually customized and the scale of production is small.

For Chen Xuan, general manager of Daye Laser Co of Shenzhen in Guangdong province, the industrial purpose of 3-D printing is more about testing new ideas than producing functional parts.

"Because of the lack of materials, 3-D printing is, in most cases, used in the production of mockups," he said, referring to a scale or full-sized model of a design or device used for teaching, demonstrations, design evaluation and promotions, among other purposes.

"In some countries, 3-D printing is used in customized manufacturing, but the domestic manufacturing industry has not reached this stage," said Chen.

According to reports, the use of 3-D printing and ultrasound techniques have enabled a Japanese company to generate 3-D printouts of a fetus, allowing the parents to see their baby before the mother has even given birth.

Boeing has used 3-D printers in the manufacture of more than 20,000 parts, which have been used in 10 different types of military and commercial aircraft, including the A380 Dreamliner, the world's largest passenger jet.

In China, however, the development of 3-D printing is limited by two factors, according to Chen.

First, the technique is only really suitable for small-scale production at present, when the costs are lower than those of mass production.

Second, China imports most of its 3-D printers and materials. That raises the cost of production and narrows the price margin between 3-D printing of products and traditional modes of manufacturing.

The market outlook is promising in the fields of design validation and sample custom-making, but in the short term, the high price still limits its potential popularity, according to an investment evaluation report published in July by S&P Consulting in Beijing.

久久久无码人妻精品无码_6080YYY午夜理论片中无码_性无码专区_无码人妻品一区二区三区精99

    中文字幕一区二区在线播放| 亚洲欧洲无码一区二区三区| 国产在线视频一区二区三区| 久久精品欧美一区二区三区麻豆| 国产精品系列在线播放| 国产精品传媒视频| 在线观看日韩av先锋影音电影院| 午夜精彩视频在线观看不卡| 精品国产乱码久久久久久夜甘婷婷 | 国产精品一区免费在线观看| 国产精品久久久久久久久久久免费看| 色94色欧美sute亚洲线路二| 日韩va亚洲va欧美va久久| 国产午夜精品一区二区| 色哟哟欧美精品| 日韩电影在线一区| 国产欧美一区在线| 欧美在线制服丝袜| 国产中文字幕一区| 亚洲免费伊人电影| 欧美电视剧免费全集观看| 成人免费黄色在线| 天天综合网天天综合色| 国产日产欧产精品推荐色| 在线亚洲精品福利网址导航| 久久精品二区亚洲w码| **性色生活片久久毛片| 欧美一二三四在线| av电影在线观看完整版一区二区| 日韩黄色在线观看| 国产精品久久久久久久久免费相片 | 99精品久久免费看蜜臀剧情介绍| 首页亚洲欧美制服丝腿| 欧美激情一区二区三区不卡| 欧美日韩成人综合| 风间由美一区二区三区在线观看 | 色婷婷综合视频在线观看| 麻豆成人免费电影| 亚洲另类一区二区| 久久综合给合久久狠狠狠97色69| 色综合中文综合网| 精品在线亚洲视频| 亚洲欧美成aⅴ人在线观看| 欧美刺激午夜性久久久久久久| 91小视频在线| 国产专区欧美精品| 丝袜亚洲另类欧美| 亚洲丝袜美腿综合| 2020日本不卡一区二区视频| 欧美日韩另类一区| 91丨九色丨尤物| 国产精品影音先锋| 日本aⅴ亚洲精品中文乱码| 亚洲狠狠丁香婷婷综合久久久| 欧美一二三四在线| 欧美视频第二页| 99久久精品一区二区| 国产综合色产在线精品| 午夜精品一区在线观看| 亚洲欧美一区二区三区国产精品| 久久久五月婷婷| 欧美一级片在线| 欧美日韩精品一区二区三区| 97久久精品人人澡人人爽| 国产一区二区三区四| 日韩av网站在线观看| 亚洲一区在线观看免费| 17c精品麻豆一区二区免费| 国产亚洲精品久| 欧美大胆一级视频| 在线播放视频一区| 欧美午夜理伦三级在线观看| 99国产麻豆精品| 粉嫩av一区二区三区| 国产一区二区精品久久99| 蜜臀久久99精品久久久画质超高清| 亚洲成a人片综合在线| 亚洲精选视频在线| 亚洲欧洲在线观看av| 国产精品久久久久天堂| 中文字幕免费不卡| 国产日本亚洲高清| 久久精品亚洲乱码伦伦中文| 精品国产精品一区二区夜夜嗨| 欧美一区二区视频在线观看2020 | 免费在线视频一区| 天天av天天翘天天综合网| 一片黄亚洲嫩模| 亚洲综合视频网| 玉米视频成人免费看| 成人一区二区三区视频在线观看| 国产精品一线二线三线精华| 黄色小说综合网站| 精品伊人久久久久7777人| 开心九九激情九九欧美日韩精美视频电影| 日韩中文字幕麻豆| 日本伊人精品一区二区三区观看方式| 偷拍日韩校园综合在线| 日韩av中文字幕一区二区三区 | 日韩中文字幕区一区有砖一区| 亚洲成av人片在www色猫咪| 亚洲h精品动漫在线观看| 亚洲成人久久影院| 日韩高清国产一区在线| 免费av成人在线| 日本不卡的三区四区五区| 亚洲日本韩国一区| 国产精品久久久爽爽爽麻豆色哟哟| 国产亲近乱来精品视频| 中文一区在线播放| 亚洲日本电影在线| 亚洲午夜日本在线观看| 日日夜夜免费精品| 美洲天堂一区二卡三卡四卡视频| 精品一区二区三区不卡| 国产精品一二三区| 国产精品一二一区| 成人开心网精品视频| 91亚洲国产成人精品一区二区三 | 日韩有码一区二区三区| 五月天亚洲婷婷| caoporn国产精品| 99综合电影在线视频| 91免费视频网| 欧美日韩亚洲国产综合| 91精品国产福利| 精品粉嫩aⅴ一区二区三区四区| 国产调教视频一区| 1024国产精品| 亚洲午夜电影网| 蜜桃视频第一区免费观看| 精品一区二区影视| 成人国产精品免费观看视频| 日本二三区不卡| 日韩片之四级片| 国产精品五月天| 亚洲午夜羞羞片| 黑人巨大精品欧美黑白配亚洲| 丰满亚洲少妇av| 欧美午夜片在线看| 精品福利av导航| 亚洲美女免费在线| 免费在线观看成人| 成人综合婷婷国产精品久久蜜臀 | 亚洲国产一区二区在线播放| 美女视频黄久久| 国产成人99久久亚洲综合精品| 91久久一区二区| 精品国产免费人成在线观看| 中文字幕在线不卡| 日韩电影免费在线观看网站| 粉嫩一区二区三区在线看| 欧美性色黄大片手机版| 久久综合精品国产一区二区三区| 1区2区3区欧美| 日本在线不卡一区| voyeur盗摄精品| 日韩一区和二区| 最新国产成人在线观看| 免费日韩伦理电影| 一本大道综合伊人精品热热 | 日韩视频一区二区三区| 亚洲天堂精品在线观看| 另类中文字幕网| 色天使久久综合网天天| 2024国产精品视频| 亚洲国产精品影院| 成人综合在线观看| 日韩一区二区三区四区五区六区| **性色生活片久久毛片| 国产资源在线一区| 欧美日本乱大交xxxxx| 国产精品卡一卡二卡三| 久久精品久久精品| 欧美视频完全免费看| 国产精品美女久久久久久久| 麻豆精品国产传媒mv男同| 91成人网在线| 中文乱码免费一区二区| 蜜臀av性久久久久蜜臀aⅴ| 在线影院国内精品| 国产精品视频在线看| 精品一区二区三区免费观看| 欧美日韩中文字幕精品| 国产精品理论在线观看| 激情图片小说一区| 7777精品伊人久久久大香线蕉的| 亚洲人成影院在线观看| 国产凹凸在线观看一区二区| 日韩欧美色电影| 五月天亚洲婷婷| 在线观看国产精品网站| 国产精品高潮呻吟| 国产精品99久久久久久久女警| 日韩一区二区三区在线| 午夜成人免费电影| 日本高清免费不卡视频| 综合在线观看色| a级精品国产片在线观看| 久久久精品影视|