Shanghai Songjiang Vibration Absorber Group Co., Ltd. is proud to introduce the patent certificate for the rubber expansion joint inner diaphragm. As a leading manufacturer of vibration absorbers, we have continuously strived for excellence amidst attempts at imitation.
In our ongoing efforts to distinguish ourselves and prevent imitation, we have obtained a patent certificate for the inner diaphragm of rubber expansion joints. This innovative design ensures that the inner wall of our produced rubber expansion joints bears unique characteristics, identifiable by distinct patterns. With this feature, customers can easily identify genuine products from Songjiang Group, avoiding imitation by unscrupulous entities.
While this design concept is prevalent in the tire industry, its application in the field of rubber expansion joints is novel. As pioneers in the domestic rubber expansion joint industry, Songjiang Group remains committed to enhancing the quality of our products to better serve our customers
