- Sterile and easy to tear, non-stick paper, no paper dust to achieve better results; - Three explosion-proof edges are used to prevent cracking; - Provide color change instructions with clear and clear status; - Through the transparent film, the contents can be clearly seen to prevent errors; - Import high-grade medical paper to ensure high anti-bacteria; - Strengthen the membrane to prevent tearing when opening the bag; - Non-toxic water-based inks that are clear and stable and will not open. Discoloration indication: The color change indication under steam turns from blue to black, and EO turns from pink to yellow.