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Perforated Anti-Slip Plate — Grip From the Hole Rim, Drainage Open AreaPerforated
Perforated Filter Tubes — The Shell Carries the Load, Medium Sets RatingRolled
Checkered Steel Plate — Base Thickness Is What Carries the LoadTear drop, diamond and
Alu-zinc coated steel (55% aluminum, 43.4% zinc, 1.6% silicon) combines the corrosion