1. rotary oil damper 2. 20mm diameter 3. heat resistance 4. High torque 5. ... and elegant mechanical motion. Product information: Sunshine’s rotary damper (bumper, cartridge, soft close damper, rotary damper, hinge, axis, axes, hinge, toilet seat hinge, soft ... Manufacturing Co., Ltd is a specialized designer and manufacturer of rotary damper. One hundred percent of our products are destined to export ...