亚洲高清无码视频,特级丰满少妇一级AAAA爱毛片,午夜福利一区二区三区,午夜福利电影在线观看

Company profile

Home > About Us > Company profile

 

Sinosteel Zhengzhou Research Institute of Steel Wire Products Co., LTD began to build in 1973 and was restructured in 1999 to be scientific and technological enterprise, a wholly-owned subsidiary of Sinosteel Corporation, mainly engaging in research and development of new technique, new technology, new material, new equipment and new product of steel wire and steel wire products. we have more than 400 junior and senior engineers.

National Quality Supervision and Examination Center of Steel Wire is established at the institute, which is a technical inspection agency established with the approval of State Administration for Quality Supervision and Inspection and Quarantine, and inspects 1087 parameters,984varieties of product under 12 categories.

The Productivity Promotion Center of Metallurgical Steel Wire Products Industry is also set up in the institute.

The institute is the head unit of national metal products information network, sponsoring the magazine “Metal Product”, a state-level emprise technical journal, and it also is the member unit of the Academic Committee of Metal Products of Chinese Metals Society,

In recent years, the institute, resting on the particular qualified personnel and technical superiority has increasingly upgraded the scale so that its product covers various spring steel wires, welding wires, profile wires, cold heading wires, stainless steel wires and wire ropes, production equipment of welding wire, production equipment of wire drawing and industrial automation control systems.

 

The national “863” project, oil quenching-tempering spring steel wire for high stress valve spring, has been industrialized, and the oil-tempered spring steel wire for suspension spring has won the title of National Key and New Product, the products covering such fields as aero-space, railway, machinery, auto, metallurgy and building. Moving to Zhengzhou High-tech Industries Development Zone in September, 2006, the institute has been stepping up to reallocate resources with great efforts and highlight the comprehensive advantages, striving to build up a development and industry base of new material of high-end metal products in the country soon.     

Facing both opportunities and challenges, the institute, of openness, development, learning, and harmony, would like to make progress together with all walks of life and create a better future.

 

 

1306_副本.jpg

 

(R & D Park)No.70. Science Avenue, High-Tech Zone, Zhengzhou City, Henan Prov, China / (Industry Park)No.26. Huagong Road, High-Tech Zone, Zhengzhou City, Henan Prov, China

Telephone:+86 371 6785 2000

Email:info@zrw.cn

Fax:+86 371 6763 2895

wechat
亚洲丰满熟妇在线观看 | 真人中文无码任你躁 | 手机无码视频一区二区三区 | 国产性感美女在线观看av | 色狠狠色噜噜AV天堂五区消防 | 成人天码区免费A片 | 久久精品国产亚洲AV瑜伽仙踪林 | 直播级婬片A片免费播软件 欧美一级婬片A片免费软件 | 人妻中出丝袜 井川ゆい | 精品国产AⅤ无码久久久暖暖 | 日本欧美产无码久久久久又大又粗 | 国产一区二区精品丝袜 | 国产农村妇女毛片久久久 | 农村熟妇高潮精品A片 | 久久夜色撩人国产综合AV | 国产无遮挡又黄又爽在线观看 | ThePorn国产入口 | 9人妻偷拍 熟女网站 | 911亚洲精品无码成人A片在线 | 一级黄色日本A级片试看2分 | 人人妻人人澡人人爽人人 | 国产真实伦对白精彩脏话 | 注意: 中文字幕 人妻 | 午夜国产A久久片亚洲最大 影音先锋中文字幕在线观看 | 日本少妇一区二区三区 | 成人网站在线免费播放 | 国产伦精品一区二区三区视频痴汉 | 国产麻豆性爱视频 | JULIA在线播放x99MAV | 国产一级婬片A片免费无成人黑豆 | 国产精品精品久久久久久 | 破解版呜呜呜黄色爱看 | 一级a爱视频免费久久 | 精品免费一区二区三区 | 日本中文在线观看 | 椛岛光AV无码一区二区 | 免费观看高清无码 | 女人被啪呻吟AAA级毛片 | 久久久久久久久久网站 | 国产精品嫩草影院 竹菊 | 东北免费黄色电影网站 |