蜜桃久久av,日韩欧美视频专区,久久精品国产免费看久久精品 ,99久久精品一区二区成人

About Us Culture Honor Development Recruitment

about

         YongCheng Group is installed in an industrial complex of 37,000 square meters, with more than 16,000 square meters of constructed area, located in south of China.  In this modern industrial plant, we have analysis and development laboratories, testing center, foundry and machining workshop, warehouse, administrative and commercial areas.

With advanced features, Yongcheng has responded effectively to the challenges and needs of the market. Its extensive product line is a true ´mix of solutions´ in continuous casting, centrifuged casting and machining CNC. YongCheng Group specializes in the design, manufacture and supply copper components for equipment, in mining, construction machinery, wind energy, oil and gas, ship, punch. YongCheng is also a key OEM supplier in heavy equipment around the world. Our emphasis is on spare parts for crushers, excavators, electric rope shovels. YongCheng is also positioned for growth in other areas that call for precision CNC machining, covering copper castings, cast/grey iron castings, steel alloys and steel forgings.

To maintain high quality, YC invested millions of dollars on foundry equipment from Germany, machining equipment of MAZAK, DOOSA and testing equipment of Zeiss, Fora in recent years.  In additions, YC insists on strict production process control. In 2002, YC is certified by ISO9001, ISO 14001 and OHSOS18001. In 2014, YC passed supplier system audit of GE and Siemens. YC testing center is certified by CNAS, which has high precision detection ability.

Our Quality Assurance process insures producing high quality products and tracing product flow. We review any problems in workflow in quality control meetings held in every week, so they can be improved and solved. YC’s ISO9001 program is relied on our traceability and record retention. Our procedures allow us to trace any part that we produce, even years later. We can refer to production log and review any production detais.

YC’s Inspection process is strictly and thoroughly controlled. YC quality team inspected every part following the specifications. YC uses the modern inspection tools, including the CMM (Coordinate-measuring Machine), which is a powerful inspection tool providing very accurate and detailed results.

The main application are:

mining&aggregate induetries, including cone crusher parts, jaw crusher parts, gyratory crusher parts, excavators parts and mill parts.
Power&electrical industries
Oil and gas
Steel
Automotive industry
 

Advantages

HIGH CASTING CAPACITY
We introduce advanced centrifugal casting facility and process to improve mold filling capacity and feeding capacity of molten metal. In this way, there is little shrinkage, blowhole and inclusion in the casting.

TIGHT PROCESS CONTROL
We have been certified by the ISO9001, ISO14001 and OHSAS18001 (quality, environment and occupational health and safety management system) and the China Classification Society CCS in 2002.
By following these standards, we have the first-class tight process control for quality of product.

HIGH TESTING LEVEL
Our Testing Center introduces advanced testing equipments and has a team of high-quality staff. As an industry leader, it is certified by China National Accreditation ( CNAS ) and awarded with the title of “ZHUJI COPPER ALLOY BUSH TESTING CENTER” by Zhuji Products of Quality Supervision. High testing level guarantees product quality as required.

PROFESSIONAL TECHNIQUE TEAM
Yongcheng Group R&D Center is equipped with 12 engineers and technicians and 8 experts with high degrees.  The company now owns 13 national invention patents, 12 provincial invention patents and 18 other patents.

 

Yongcheng Group

成人国产精品一区二区免费麻豆| 先锋资源久久| 老色鬼精品视频在线观看播放| 伊人成人网在线看| 日韩精品一区国产| 亚洲人成久久| 日本乱码一区二区三区不卡| 极品裸体白嫩激情啪啪国产精品| 国产伦精品一区二区三区千人斩| av成人亚洲| 视频一区视频二区中文| 999国产精品永久免费视频app| 国产一区网站| 日日摸夜夜添夜夜添国产精品| 手机亚洲手机国产手机日韩| 1000部精品久久久久久久久| 精品欧美视频| 日本不卡123| 91伊人久久| 蜜臀av一级做a爰片久久| 天天操综合网| 色狠狠久久av综合| 亚洲精品一区国产| 亚洲另类春色校园小说| 日本麻豆一区二区三区视频| 日本成人在线网站| 中国色在线日|韩| 午夜在线一区| 尹人成人综合网| 国户精品久久久久久久久久久不卡| 精品视频在线观看免费观看| 在线观看欧美| 国产精品扒开腿做爽爽爽软件| 亚洲18在线| 亚洲国产天堂| 国产综合色区在线观看| 裤袜国产欧美精品一区| 国产精品99久久精品| 制服诱惑一区二区| 自拍偷拍欧美| 午夜国产欧美理论在线播放| 亚洲国内欧美| 亚洲一级特黄| 国产专区一区| 五月天久久777| 五月精品视频| 一区久久精品| 国产一区成人| 老司机精品福利视频| 美女精品一区| 成人亚洲一区二区| а√天堂8资源中文在线| 日韩.com| 欧美日韩免费看片| 国产v综合v| 国产精品久久久久久久久免费高清| 日韩av首页| 久久久久黄色| 亚洲乱亚洲高清| 国产高清日韩| 亚洲综合福利| 日韩第一区第二区| 亚洲三区欧美一区国产二区| 国产suv精品一区| 久久九九免费| 一本色道88久久加勒比精品| 欧美专区一区二区三区| 欧美黄色大片在线观看| 国内激情视频在线观看| 性感美女一区二区在线观看| 天天综合91| 国内在线观看一区二区三区| 99re8精品视频在线观看| 亚洲精品国产setv| 国产精品白浆| 91久久电影| 成人影视亚洲图片在线| 日韩电影免费网址| 日韩精品亚洲专区| 综合天堂久久久久久久| 日韩成人一级片| 久久精品影视| 国产精品入口66mio| 三级中文字幕在线观看| 三级久久三级久久| 亚洲va久久| 亚洲午夜黄色| 丝袜诱惑制服诱惑色一区在线观看| 午夜影院一区| 亚洲精品社区| 荡女精品导航| 欧美日韩国产亚洲一区| 亚洲永久av| 日韩综合小视频| 视频精品国内| 视频一区中文| 中文字幕不卡三区视频| 日韩国产一区二| 日韩av一区二区三区| 国产99精品| 都市激情亚洲一区| 日日夜夜免费精品| 亚洲不卡视频| 亚洲综合好骚| 欧美在线免费一级片| 久久久国产精品入口麻豆| 亚洲福利精品| 欧美日韩国产v| 国产精品一线天粉嫩av| 在线成人动漫av| 在线男人天堂| 欧美久久一区二区三区| 亚洲一级一区| 欧美日韩视频免费观看| 成人亚洲精品| 激情丁香综合| 欧美一级二级视频| 亚洲人挤奶视频| 99热这里只有成人精品国产| 亚洲成a人片777777久久| 午夜先锋成人动漫在线| 亚洲激情女人| 日韩成人综合网| 欧美日韩一区二区三区在线电影 | 亚洲国产aⅴ精品一区二区三区 | 欧美福利在线播放网址导航| 美女国产精品| 中文字幕一区二区精品区| 久久综合av| 成人免费一区| 精品日韩在线| 天堂8中文在线最新版在线| 国产精品免费大片| 国产亚洲精品bv在线观看| 国产精品久久777777毛茸茸 | 亚洲精品一区三区三区在线观看| 最近国产精品视频| 亚洲尤物精选| 国产一区二区三区亚洲综合| 好看不卡的中文字幕| 日韩精品欧美精品| 亚洲香蕉网站| 日韩精品电影一区亚洲| 久久青草久久| 免费亚洲一区| 国产91精品对白在线播放| 久久亚洲精品人成综合网| 欧美日韩导航| 精品美女一区| 国产一在线精品一区在线观看| 一区二区激情| 激情欧美丁香| 国内精品嫩模av私拍在线观看| 伊人狠狠色j香婷婷综合| 欧美黄色aaaa| 日韩中文字幕亚洲一区二区va在线| www.久久爱.com| 蜜臀久久久久久久| 中文字幕一区二区三区四区久久| 岛国av在线网站| 国产精品午夜av| 日韩美女在线| 亚洲天堂偷拍| 国产精品久久久久久av公交车| 亚洲制服av| 日韩激情综合| 亚洲国产伊人| 亚洲成人日韩| 久久不见久久见国语| 欧美a级片视频| 精品一二三区| 麻豆91小视频| 蜜桃视频在线一区| 粉嫩久久久久久久极品| 久久中文精品| 亚洲欧美日韩国产综合精品二区| 亚洲午夜久久| 国产欧美在线观看免费| 亚洲国产日韩欧美在线| 最新国产精品视频| 交100部在线观看| 午夜欧美理论片| 亚洲丁香日韩| 国产成人亚洲一区二区三区| 黑丝一区二区| 免费观看性欧美大片无片| 亚洲91在线| 麻豆精品网站| 91在线一区| 影音先锋在线一区| av在线播放资源| jiujiure精品视频播放| 国内成人精品| 日韩三级成人| 免费人成在线不卡| 久久久精品五月天| 国产精品久久免费视频| 色老太综合网| 国产亚洲网站| 99久久亚洲精品蜜臀|