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Continue to ChatJOUCOMATIC 4485002350 - 50mm Bore, 50mm Stroke, STB50A0AB50DM, Series 448 Rodless Band Cylinders With Active Brake https://www.valves-direct.com/product/joucomatic-4485002350-50mm-bore-50mm-stroke-stb50a0ab50dm-series-448-rodless-band-cylinders-with-active-brake/