Best Quality DSM-12-270-P-SA 540 343 UN02 Swing Cylinder For Roland Offset Printer Parts 540343 Guangzhou XiangChen Printing Equipment Co., Ltd is a professional printing machinery spare parts supplier, established in 2015, with 3 branch companies now. We specialize in HDM, Man Roland and Komori Printing Machine Spare Parts including original circuit boards, computer boards, PC boards, pneumatic cylinders, motors, sensors, valves, cam followers, bearings, gripper fingers,