For professional-grade beauty tools, “干净的” is not enough. They must meet sterilization standards comparable to surgical instruments.Sterilization Grades:Autoclave Readiness: Tools must be made of Grade 420 或者 440 不锈钢. These alloys can withstand high-pressure saturated steam ($121^{circ}C$ to $134^{circ}C$) without losing their tempering (hardness) or rusting.Ultrasonic Cleaning: Before packaging, tools undergo ultrasonic baths to remove microscopic debris and oils from the hinges and serrations that manual wiping cannot reach.Plasma Sterilization: For high-end OEM orders, some factories offer Gamma-ray or Ethylene Oxide (EO) sterilization, sealing the tools in medical-grade pouches that stay sterile until opened by the consumer.