Spring Hanger of YS-HN. Patent No: M569386
Spring Hanger of YS-HNS. Patent No: M579227
Portable Air Jacks. New Patent of China No:69410187
Constructure of Air Jack. Patent No:M548165/ New Patent of China No: 7133205
Constructure of Portable Air Jacks. Patent No:M537049 + M540211
Constructure of YS-BN & YS-BNS Spring Mount. Patent No:M517274 & M517273
Launch air Jacks of YS-280-2V. Patented.
Develop a series of air sleeves for modified car
Launched levelling Base for air cooling tower. Patented.
Developed heavy-Loadind spring mount
Develop small and light vibration mount.
Develop leak-proof and oil-pressure composite vibration isolators.
Launche YS-AG Seismic Mounts & Restrains Springs Mounts.
Launch YS-AG Seismic Mounts & Restrains Springs Mounts.
YS-JA and YS-HPA Air Mounts Launched.
YS-CA Spring Mounts Launched.
Certified to ISO 9002
YS-EAE Air Mounts Launched.
YS-EAE Air Mounts Launched.
YS-SS Rubber Mounts Launched.
YS-SRB Rubber and Spring Compound Vibration Isolators Launched.
YS-V Air Springs Launched.
Rubber Mounts start to manufacture
A series of Spring Mounts Manufactured
YS-K Air mounts Launched
YS-FLEX Rubber Joints Developed