Community

小鱼曾乖乖 2019-07-23

I would like to ask about the classification of oxygen storage tanks, 7 MPa belongs to Cla..

wangliang 2019-07-08

Is the Maximum Spacing of Reinforced Columns Calculated by Total Length or by Spacing..

litian 2019-07-05

Have you participated in the TSG07 publicity? Ask me if the trial design documents for con..

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..

litian 2019-06-14

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

What is the density of ZG40Cr30Ni20? 0 0

zhaolin 2019-06-06

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

Selection of Petrochemical Flange Gaskets 0 0

Hebei DE xin technology co., LTD 2019-06-05

Selection and Matching of Petrochemical Flange Gaskets
Which criteria to use?..

How to do the calculation of these two ears? 1 0

小鱼曾乖乖 2019-05-27

Ask how to do the calculation of these two ears under the guidance of ah?
[this_is_pic_..