GB/T 12459  弯头 DN 50-Sch1090EL120 d=5.5fF

DN 50-Sch10 90EL120 d=5.5fF

SO 100(B)-10 RFrf��95c685l400fm.0 RF

pl50-16RFh4S=42-1.6

WN250B-100RF5Crf不RFff6/40Sc=3.

pl150(b)-16 rf d=215 b

WN25b-16rf S=3RFN100-150 RF Sch4

PL80B-6RfRSch50)02kampRF100F C=2M&a

so40(b)-600 rfA）FF80m5

wn200-600rf