Hand-held welding, horseshoe-shaped joint welding

Online repair method for damaged pipeline without interruption of operation

zhuhong

0 View

Why can loose sand be made into sand sculptures after mixing with water?

haoqiwanhuatong

9 Views

Manual Experiment: Friction Welding Wood (1)

xiaoshichuige

452 Views

Why not turn off the water when repairing a pipe? This is called pressure plugging. #Science #Unzip

haoqiwanhuatong

9 Views

Why do sprinkler heads keep knocking when irrigating farmland? #Science #Decompression #Irrigation #

haoqiwanhuatong

7 Views

The power of science

haoyongwujingongju

41 Views

The seam weld between the two screws is so large that the master welder can do it with a single elec

Desideshougong

48 Views

The foreigner's giant plow tractor actually has a cab from the last century!

haoqimiaomiaomiaody

9 Views

I advise you to quit porn (enlarging testicles)

xuetudexin-

44 Views

They say diamonds are forever, but they can be burned and broken.

haoqiwanhuatong

32 Views

Yemen is the first country to be destroyed by drugs, even children are not spared. How tragic is it?

tanmi

17 Views

Introduction to Tequila

yaki1

59 Views

Intuitive demonstration of the exquisite fish scale welding method, be sure to put it up

sungiaochuan

62 Views

You've never seen friction welding so perfect

xiaokechibaobao

55 Views

【Lee Soo Hyuk】||Pipeline||【The Prison Situation Group】Suited thugs/Crazy beauties are the most deadl

quanzidongzhangsan

13 Views

20 common mechanical transmission structures, I'm exhausted

Jinzhengmeiyongde

75 Views

Why doesn't it hurt when a needle is stuck in my finger?

yaki1

47 Views

Korean movie "Pipeline" Seo In Guk x Lee Soo Hyuk LOVE of KILL cut collection

cinruy

46 Views

How to lay a qualified asphalt road? #Science #Unzip #Paving #Knowledge

haoqiwanhuatong

22 Views

【HISHE】Jurassic Park Parody 1

jiqishudezahuopu

23 Views