I spent 1995 working in the PRC building and starting up a chemical plant to make calcium hypochlorite (aka Hockey Pucks to chlorinate swimming pools). Bearing in mind that this is only 29 years ago, some of the things that I saw people achieve with poor quality or no tools compared to the west was impressive. The importance of such developments to the local economy soon became clear when the whole of the local population would turn out to help construct things like roads or dig foundations for another chemical plant. If necessary, they would dig with their bare hands or spoons since not everyone owned a spade.
Apparently, this was how the 1 mile long road from the chemical complex to the local river was constructed to get the product to market. Unfortunately, this crudity of approach was also evident with the construction of the chemical plants, and safety issues that would not be tolerated in the west were common. For example, liquid chlorine was made and up to 20 tons of it stored in a tank sitting on railway sleepers right next to the road. If one of the many vehicles that passed the tank had hit it and caused a major leak it would have killed most of the local population, including us! And you have to see the way they drive to understand the concern. We would take bets as to where the daily chlorine leak would come from. Any kind of chlorine leak in the west would be national, if not international news. By way of a little levity we had Scott Airpacks (as used by firefighters) in case of a bad leak to do rescue work. We used to joke that we might need to use them to go to the bathroom in the very hot (40 C & 90% humidity) summer because the smell was so bad. Ahhh those were the days!