... Systems Co., Ltd Four function hydraulic bed PS-4 1. Epoxy coated steel bed frame, with mesh wire platform;2. ... Trendelenburg, 11°, which is controlled by gear mechanic system; (4) Re-trendelenburg, 11°, which is controlled by gear mechanic ... system;4. Protecting device in four corners, with IV rod ... with central locking system; Four function hydraulic bed PS-4