Ship docking airbags, basic body consists of rubber layers, synthetic-cord-reinforced rubber layers, are kind of a cylindrical airbags with hemispherical heads at the both ends. All of these are vulcanized together, and then compress air inside to enable in to roll. Material of Docking undocking rubber pontoon launching airbag An airbag is to be constructed of an outer rubber layer, one or more synthetic-tyre-cord layers, and an inner rubber layer. The arrangement of synthetic-tyre-cord reinforcement layers is shown in the picture below, all materials shall be vulcanized firmly. Prior to the airbag production, the outer and inner rubber layers shall be tested to meet criteria in the following table in accordance with the test methods given in the international standard list in the table. While only one satisfactory sample per batch is required for test numbers 1 through 3, all others must be tested for test numbers 4 through 9 annually. If the first sample fails, two additional sample should be tested. If the additional samples pass the test requirements, the materials will be deemed to have passed the test. Otherwise, the materials will be deemed to have failed the test and another batch of materials shall be selected. Application of ship docking airbag 1.For ship upgrading, conversion or new/repair launching (Ship launching airbags) 2.Marine airbag for salvaging sunken ship or heavy immersed steel structure 3.For hoisting and transporting heavy goods up to 10,000 tonnes structure on land 4.Marine pneumatic rubber fender for protective purposes, ships collision avoidance 5.Pneumatic rubber core for architecture engineering container for storing and transporting gas and corrosive chemical liquid and pure water for voyage 6.Rubber bag for ship ballast