... double stepped labyrinth gland 双短齿迷宫汽封 double-strength pipe 高强度管 double strings 双绝缘子串 ...
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介绍了高强度管坯的生产流程及锻后热处理、最终热处理工艺。
The production flow, after forged heat treatment and final heat treatment process for the high strength tube blank have been described in this article.
介绍大直径预应力高强度管桩的沉桩技术，以及沉桩过程中的注意事项和问题处理。
An introduction is given to sinking technology for large diameter prestressed high strength tubular pile, and issues for consideration during sinking and treatment of problems encountered.
文件的硬(60rc)高强度铝合金管提供了一个平稳无腐蚀密封面和良好的耐磨性。
The file hard (60rc) high strength aluminum alloy tube provides a smooth corrosion free sealing surface and excellent abrasion resistance.
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