GB/T 12459  同心异径管 DN 50×25-Sch10SRC0RJ9 SO50B-

DN 50×25-Sch10S RC0RJ9 SO50B-

BL50B-6RF f1=3100-900

PL300-40MF2ch12-A-16RF RF S=

SO40(A)-40RF4F-RJR 130mF1.0=5.532A-4.

Wn100-300 rf10 SF Scm51.5

PL225B-10 RF00-1.0 δ0=10HFSFS1@40 rf SSR

PL50(B)-40 M175 C=18 K

pl150-40rf S0.69120--1.0/m1

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