Is there a custom for women to get married in Daqing?

Before Daqing, the traditional custom was to beat the bride and groom with millet and other grains at the wedding, but I don't know when this custom became the trend of beating the best man and bridesmaids, especially bridesmaids. The whole grains used to hit people are also mixed with more content. For example, someone specially got a PVC raw material from a chemical plant, which is about the size of millet, crystal clear, hard, beautiful and powerful, and became something people like for a time.