harden by quenching
The steel is heated to a high temperature then rapidly cooled with water to allow the strip to harden, followed by tempering and surface treatment.
lacquer
The tape is roll coated with water-based paint as required and dried simultaneously at 200 degrees Celsius per minute Prepare materials for follow-up
lettering
Install the made scale template on the tape measure and use a professional scale printer to print the scale on the tape measure.
checkout
The staff inspects the molded ruler tape for printing, resilience, and hardness to ensure the quality of the molding.
injection molding
Plastic is injected into a steel rule mold at a specific pressure and appropriate temperature.Plastic curing into a foot shell.