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Continue to ChatJOUCOMATIC 448500050400 - 50mm Bore, 400mm Stroke, STBN50A0400DM, Series 448 Rodless Band Cylinders With Unguided Carrier https://www.valves-direct.com/product/joucomatic-448500050400-50mm-bore-400mm-stroke-stbn50a0400dm-series-448-rodless-band-cylinders-with-unguided-carrier/