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8. Use two window screws 42 attach the window stop 18 to the window support beam 15 with its tab pointing
towards the crown 33. Both should be on the underside of their window support beam, inside the greenhouse.
9. Pls hook one side of No.52 of the inner frame base plate, then fix with screw in No. 16,17 & 32.
10. Insert the end caps 44 to the frame 34.
11.