The production of matches involves manual operations such as box making, dispensing, sieving branches, pushing branches, waxing branches, dyeing beads, baking, entering branches, checking branches, brushing phosphorus, packaging, labeling, etc. The production tools are extremely simple and rudimentary. Later on, the only machine that could be called a machine was a stem arranging machine, but it also requires manual shaking. The branches and boxes are dried by the sun's explosive exposure.

Replace phosphorus trisulfide with sulfur in the head of safety matches. The general heat of friction is not enough to cause a reaction in the medicine head. Only when scratching on the phosphorus layer on the side of the matchbox, the heat of friction first causes the sulfur to react with potassium chlorate, releasing more heat energy, and promoting the chemical substances in the medicine head to react and ignite.