552 - 40-7b pressure reducing device 在...之后 机器类型 二代吹瓶机 选项与升级主题 成本优化 复杂性1/3 Machine Sub-assemblyAir circuit 描述 To supply the SBO with 7 bar air made from 40b. 关键信息 Reduce production costs 适用机型范围 Blowers Series2 好处 No need of 7b compressor.