Community

一路向东 2019-07-29

Is there any standard of Chemical Industry Department for this kind of spectacle? It's pre..

zhaolin 2019-07-26

What I want to say is, at present, A1A2 qualifications. Next year, if you need A3 qualific..

光头强 2019-07-25

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..

是董小姐呀 2019-07-19

Is the welder's stamp on the pressure vessel made by the inspector or by the welder himsel..

Who knows what fire nuts are in the skirt? 1 0

阳光boy 2019-07-17

Who knows what fire nuts are in the skirt?..

Shell strength 0 0

一路向东 2019-07-15

When the pressure on the tube side of shell-and-tube heat exchanger is higher than the des..

专业蓝领30年 2019-07-10

How to solve the problem that ISO series is not quoted by 150?..

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..