中文字幕被公侵犯的漂亮人妻_两个人看的www视频免费完整版_无码人妻精品中文字幕_久久久久夜夜夜精品国产_永久中文字幕免费视频网站

浸入式水口用于中間包和結晶器之間鋼流的保護澆注,與整體塞棒配合使用可以控制鋼液流速、屏蔽鋼流和調整鋼流方向。本公司的浸入式水口具有良好地抗熱震穩定性和耐侵蝕性以及抗機械斷裂性。

Submerged Nozzle using together withmonoblock stoppers , are used to shroudthe casting stream between tundish andmould . The products have the function offlow control , shrouding anddirection of thecating stream . The submerged nozzle produedby the company have high resistance tothermal shock , erosion resistance andmec - hanical cracking.