568 27 R 20 20 weight (kg) 18,0 27 R 30 20 weight (kg) 83 27 R 40 20 weight (kg) 150 External corner 180° R=40 cm External corner 180° R=30 cm External corner 90° R=20 cm curve piece 27x20 5/10 type IE 4 edge courses width 20cm edge courses
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