Mold drying, also knowπ ₩n as mold biting, mold etching<>, mold etching, etc., is a common proce‌•≠→ss for mold surface treatment. ↔↔Now most of them are using laser m±™ε arking machine for sunburn (cal↕αled: laser sunburn).

    Laser ♠♣§patterning: It is the princi★®γ®ple of using laser marking machi&×≠ ne to etch, using the principle of lase ✘≤‌r to etch the metal surface of the↕≥< mold, and various effects obtained by ≠÷€§etching the mold surface.