船用橡胶靠球结构:

1.  外层胶/ Outer Ru*er
覆盖在靠球外面的橡胶层，用来保护靠球骨架材料和内层胶免受外力损伤或磨损，主要特点：高强度、*、耐老化和*撕裂。

the ru*er layer covered outside the ball is to protect skeleton material and inner glue from external force damage and abrasion. The main character is high strength, anti-abrasion, anti-aging as well as anti-tearing 
2.锦纶帘布加强层/ Synthetic cord reinforced ru*er layer

加强层是由锦纶帘线层缠绕组成的，维护靠球内部的空气压力， 其特点不变形、回弹高、*大等优点。

the reinforce ru*er layer is com*ed by synthetic cord, maintaining pressure inside the ball.

The main character is no deformation(不变形) and high springback （回弹高）

3.内层胶/ Inner Ru*er
靠球内壁的橡胶层，用来****气体渗漏，保持靠球气压。

the inner ru*er is to protect gas leakage（气体渗漏）, stay on the ball pressure.
4.端部法兰/ End Flange
靠球两端的金属制件，可安装充气阀和安全阀

the mental parts at the end of the ball can be installed inflation valve and safety valve.