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阳光boy 2019-07-03

Heat exchanger tube with outer diameter of 19, tube-sheet spacing of 35, tube-sheet manufa..

一路向东 2019-07-01

Excuse me, it's convenient to install those chemical plug-ins in CAD...

光头强 2019-06-26

Now the flange is in accordance with the 2017 standard...

小鱼曾乖乖 2019-06-24

Can steel pipe No. 10 in GB6479-2013 be used in containers? Why not mention it in GB150? I..

是董小姐呀 2019-06-21

What good insulating materials do you have besides ceramic cotton?..

一路向东 2019-06-19

Gods, what materials are good for 98% of concentrated sulfuric acid tanks?..

wangliang 2019-06-17

How much weight can this kind of bracket bear?..

litian 2019-06-14

Is this certificate to be reclaimed as A1 certificate according to the new regulations?

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阳光boy 2019-06-12

Consult a question, B1 is seamless cylinder, C2 is long-tube trailer, existing C2 certific..

What is the density of ZG40Cr30Ni20? 0 0

zhaolin 2019-06-06

Excuse me, what is the density of ZG40Cr30Ni20?..