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The thickness and dimension of floating head arch cover of floating head heat exchanger must be marked on the general drawing
1
0
litian
2020-03-12
我问一个问题啊 浮头式换热器 浮头拱盖厚度尺寸必须在总图上标出来吗..
May I have a new certificate for ASME Pressure Vessel
1
0
是董小姐呀
2020-03-05
请问下asme压力容器换证时是不是需要准备以前做的asme压力容器的资料?是不是若以前做的asme容器虽然取了asme证书但如果客户没有注册的,这些产品的资料换证时都不需要准备的。..
Where do these names come from
1
0
专业蓝领30年
2020-01-17
大家做体系人员任命时比如设计质控系统责任人、检验与试验质控系统责任人,这些名称是从哪里查出来的额?担心写的不对..
GB150 has legal effect on us and is a compulsory product standard for pressure vessels
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0
小鱼曾乖乖
2020-01-15
GB150在我们具有法律效应,且为强制性的压力容器产品标准。这个对不对?..
How to calculate the resistance coefficient when calculating the resistance drop
1
0
光头强
2020-01-10
计算阻力降的时候有个阻力系数应该怎么计算..
Hydrogen storage tank 3Mpa, 400 degrees, can s30408 be used
1
0
是董小姐呀
2019-12-31
氢气储罐3Mpa,400度,可以用S30408吗?..
Does the splicing weld of external heating coil need to be filmed? What's the proportion of films to be taken
0
0
专业蓝领30年
2019-12-25
外加热盘管拼接焊缝需要拍片吗?要拍的话拍片比例多少?..
If it's four pipe, does the diaphragm have two tear holes
1
0
wangliang
2019-12-17
如果是四管程的话,隔板是不是要有2个泪孔呀?
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