美国ERDCO Engineering Corporation
ERDCO公司主要是负责流量计，流量开关的生产．

ERDCO® offers a complete line of flowmeters, sight flow indicators, flow transmitters and flow indicating switches. We employ elegantly simple measuring technologies with proven reliability in utility fluid applications.

Whether it's chilled water, air, nitrogen, steam, lube oil or other process support fluid, ERDCO has the flow measurement solution. Select from in-line and insertion styles that feature simplicity, rugged construction and reliable operation. This product range has great versatility across a broad set of applications.