Bamboo processing equipment included bamboo shredders, bamboo strips shredders, bamboo slicing machines, etc. The bamboo breaker was a device that could break bamboo into bamboo strips with the same width at one time. It was driven by a motor. The machine was mainly used to split bamboo strips into thin strips, and was widely used in the fields of sugar cane binding and weaving soft mats. In addition, there was a bamboo slicing machine that could cut bamboo into bamboo slices of different thickness. These devices could improve the processing efficiency of bamboo chips and meet different processing needs.
Maybe you could have a major scandal or fraud associated with the lottery process, causing public outcry and forcing it to stop. Another option could be if the main characters decide to expose the negative aspects and actively campaign against it.
The lottery in the story works in a very primitive and cruel way. Everyone participates, and the one whose name is drawn is chosen as the victim with no clear reason or logic behind it. It seems to be a blindly followed ritual without any real purpose.
To be honest, I can't recall who wins the lottery precisely in that short story. It's a story that keeps you guessing until the end. Maybe you should give it a read and figure it out for yourself.