亚洲 自拍 另类小说综合图区_伊人伊成久久人综合网_国产伦精品一区二区三区妓女下载_亚洲成av人片在www_久久被窝亚洲精品爽爽爽_国产精品乱码在线观看_亚洲成AV人在线观看网址_五月丁香六月综合缴清无码_中文字幕丝袜第1页_777久久精品一区二区三区无码

Transformation of scientific and technological achievements

Heavy metallurgical equipment

Research and development achievements of core components

AGC cylinder

Assembly of pinch rollers for China's first heavy hot rolling mill

Pull rod component

(identified as an international advanced level by Tianjin Science and Technology Product Appraisal Center)

Tianjin Science and Technology Achievement Registration Certificate

  • WeChat

  • Tiktok

  • Video

ICP備案號(hào):津ICP備15002121號(hào)-1

24 hours service hotline

022-24278668 17622699658

Address:
No. 61 Huasheng Road, East of Jinwei Road, Science and Technology Park, Beichen Economic and Technological Development Zone, Tianjin