阳光boy
What is the allowable fluctuation range for holding pressure for a long enough time? Where..
一路向东
I'd like to ask, what about the overlap of welding seams between boiler flue gas pipe weld..
zhaolin
& What is the nominal diameter of phi; 51 pipe?..
光头强
Does the weld between the reinforcing ring and the cylinder belong to class D joint, and i..
litian
Ask, what is the overpressure limit in SW6 and what does it mean?..
小鱼曾乖乖
Who knows why Jinlin sheet metal unfolding map can not be transferred to cad?..
是董小姐呀
Consult me, stress analysis equipment write welding joint coefficient..
wangliang
The equipment with a diameter of 5200mm and a length of 10m is transported from Wuxi to Zh..
专业蓝领30年
GB150 revised document said that it should not be used for heat exchanger tubes of shell-a..