Manufacturing like this would be against the law in North America /Europe, absolutely no safety standards. However, the manufacturing is very resourceful with the minimal of tools and labor costs.

*Cool video. We do not carry out such repairs.*

at 18:31 I can see that you have porosity in all your welds 💀💀

how many people die per week at this factory?

Bravo colleagues, cool channel and videos 🎉

There is no self locking. One has to pull the safety inorder to engage and disengage the lock.

Втулки забиваются при помощи кувалды и какой то матери. 😳

do these wear out after sometime ?

Nearly totally automated manufacturing! I bet, on sunny days they are producing more than 3 fifth wheels per day.