The invention concerns a bladder for an inflatable ball, in particular a soccer ball, a ball including the bladder, and a manufacturing method for the bladder.
本发明提供了一种可充气的球的球胆，特别是足球的球胆，一种包 括这种球胆的球，以及这种球胆的制造方法。
A producing method of ball for ball game including a ball cover and a bladder is disclosed.
本发明提供一种包括球皮和球胆的球技用球的制法。
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