Sprayed plastic anti-blocking block for aircraft wings

Dimensions: 300*200*290*4.5 (used in conjunction with F130 square column, with no skylight) Distance from the center of the hole on the wing to the top 98 2
Thickness: The thickness of the deflected black piece wall shall not be less than 4.65-4.75
Aperture: (connection with slotted column) 22*74
Aperture: (connection with round column) φ24
Aperture: (connection with guardrail board) 24*40
Zinc coating: Average 85μm, not less than 85μm At the lowest point (lowest point accounts for not more than 2%)
Single piece weight: 7.5kg