72F50-SE0AA1DAA4AA，72F40-SE0AA1DAA4AA：E+H恩格斯豪斯德国品牌，涡街流量计72F50-SE0AA1DAA4AA，72F40-SE0AA1DAA4AA流量计，流量计就是在一种计量产品，它符合一般的价值规律，精度越高，价格越高，重量越大，价格越高，功能越多，价格越高，进口的产品比国产的贵。
　

72F50-SE0AA1DAA4AA，72F40-SE0AA1DAA4AA：E+H恩格斯豪斯德国品牌，涡街流量计72F50-SE0AA1DAA4AA，72F40-SE0AA1DAA4AA流量计，流量计就是在一种计量产品，它符合一般的价值规律，精度越高，价格越高，重量越大，价格越高，功能越多，价格越高，进口的产品比国产的贵。
　　既然说到选型原则，那么必然要考虑功能、价格各方面的因素。比如说用户只要测量一个四寸管道的水的瞬时流量，那么大部分的流量计都可以满足测量要求，格的数百元，zui高价格的可能数十万，就只能看用户怎么选择了。   流量计选型原则：

　测量液体 测量气体 都有不同的流量计适用。
　　简单说一下适用的情况吧 按照同口径价格从低到高排列
　　测量液体 玻璃转子流量计 孔板 椭圆齿轮流量计 涡轮流量计 金属转子流量计 电磁流量计 涡街流量计 超声波流量计 质量流量计
　　测量气体 玻璃转子流量计 孔板 金属转子流量计 涡轮流量计 涡街流量计
 

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72F50-SE0AA1DAA4AA       72F40-SE0AA1DAA4AA    德国E+H    E+H超声波流量计    恩格斯豪斯