Features：

· High-quality material: Made from 2Cr13 stainless steel through one-time punching and cutting, with a hardness of at least 30HRC.

· Accurate measurement: Polished surface with metric bold font scales on both sides; graduations and data are engraved by laser for precision.

· Durable protection: The entire ruler body is stamped from a single piece of material and coated with varnish to prevent corrosion and extend lifespan.