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2021-06-09
指針式流量開關流量范圍：1型流量范圍(l/h)編號壓力損失△Pmax(kPa)3/4”DN1520-16015.18.540-25015.212.050-40015.315.080-60015.420.0150-100015.545.0200-160015.615.0300-250015.745.01”DN25200-160025.110.0300-250025.220.0400-300025.330.0500-400025.440.011/2&rdq...
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国产精品无码不卡一区二区三区
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