Steel Perforated Panel, Shape : Square, Length : 600mm for Industrial

The perforated panel , air flow rate can be 17%,22%,25%,35% and 50%, 60%
features:
1) size: 600 x 600 x 30mm, 600 x 600 x 35mm, 610x610x35mm
2) top and bottom welded with cold steel
3) hollow inside
4) epoxy coated
5) surface laminated with colorful hpl with various color of imprint stripe edges
6)corner-lock freestanding understructure system or stringer bolt understructuresystem, or snap-on stringer system
7)cisca for access floors concentrated load grades 700lbs, 800lbs, 1,000lbs, 1,250lbs, 1,500lbs, 2,000lbs, 2,500lbs.