久久国产视频久久久久久-暖暖免费视频在线观看-欧美日韩人妻一区二区电影-国产高清不卡dvd一二三区-五月婷久久综合狠狠爱97-欧美日韩三级理论片-亚洲堂天AV在线观看

? Hebei Xindongrui Alloy Material Technology Co.,Ltd was founded in 1995 . It was changed name to Shijiazhuang Xindongrui Alloy Co.,Ltd in 2005 and transformed to produce industrial profiles. In 2009, the company was registered as Hebei Xindongrui Alloy Material Technology Co.,Ltd and relocated to Luquan district which is in Shijiazhuang Information Industry Basement and China Semi-conductor optics valley park. The factory covers area of 28,000m2 and building area over 20,000m2. We are one of...