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Type 2: “Juncker-type”, 8 waves
Type 4: “Hymmen-type”, 9.5 waves
Type 5: “straight-wave”, 7-7.5 waves
Type 6: “Juncker-style”, 8 waves
Type 1: “Schwerin-type”, 7 waves
Type 3: “RK-type”, 8-9 waves
Unclassified: “French-made”, 9 waves
