说明 Pressure independent control valve 注释记号 --- MC Product Code Frese Optima Compact Low flow PN25 DN100 magiProductFamilyId 6671a74a2b704780975e46da077cee URL https://www.frese.eu/hvac/en-GB/Products/PICV/Frese-OPTIMA-Compact-DN50-DN300 部件代码 --- VersionID 2.0/2018.12.13...