550 - Double roller locking 在...之后 机器类型 二代吹瓶机 选项与升级主题 效率 复杂性3/3 Machine Sub-assemblyWheel 描述 Replacement of the cams and locking shafts. 关键信息 Improve the reliability of locking function 适用机型范围 PM<5118MM<5133GM<5095 好处 Increased reliability.