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How to understand the level of bundle not indicated in the drawing
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是董小姐呀
2019-11-08
The heat exchange tube used in the heat exchanger has the difference between the primary t..
Ask for zirconium material pressure capacity, heat exchanger tube and other standards. Some of them can help to transmit and sense
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TuKai
2019-11-06
Ask for zirconium material pressure capacity, heat exchanger tube and other standards. Som..
When this kind of joint is welded to make a process, what should welder choose for the project with certificate
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wangliang
2019-11-01
这种接头焊接做工艺的时候,焊工持证项目应该选什么呀?是按C类选还是D类呀?
Which God has about 30 cubic meters of double-layer underground storage tank drawing reference
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litian
2019-10-23
哪们大神有30立方左右双层地埋贮罐的图纸参考下,内筒316L,外层304的..
There is a certain approximate relationship between hardness and tensile strength. What is the tensile strength of low carbon steel?
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海阔天空
2019-10-21
请问硬度与抗拉强度有一定近似关系,低碳钢抗拉强度是多少HB
..
Welding procedure qualification covers 6-12M
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光头强
2019-10-18
焊接工艺评定覆盖范围是6~12mm,可不可以用这个工艺评定来支撑10mm板厚和3.5mm接管厚的管板焊接工艺呢?..
Who has complete qualification for Q235-B J422 electrode
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小鱼曾乖乖
2019-10-16
哪位有Q235-B J422焊条的工艺评定完整资料,给小弟一套。谢谢!!!..
Have your friends ever met this kind of situation?
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是董小姐呀
2019-10-12
朋友们有没有碰到这种情况,有的容器工况是:工作压力0.04mpa,工作稳定-40℃,且经过计算属于低温低应力工况,但是查找以前的图纸,设计厚度都取非常厚,比常规产品还加厚了,这是什..
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