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Continue to ChatSTH-background system, motorized, for 3.55 m paper https://hensel-store.com/product/sth-background-system-motorized-for-3-55-m-paper/
STH-background system, motorized, for 3.55 m paper https://hensel-store.com/product/sth-background-system-motorized-for-3-55-m-paper/