Appearance test: Use a ruler to test the length, width and thickness of the floor.

Abrasion test: With the key repeatedly scraping the floor surface, the surface does not leave scratches.

Static bending strength test: The floor on the ladder on the staff station to the top, the floor did not break.

Waterproof test: First poured water on the floor, 3 hours after the surface of the floor did not find swelling deformation phenomenon.

Stain resistance test: The ink poured on the floor, 5 minutes after the wipe did not leave stains.