HG/T 20592  法兰 WN 50(B)-100 RJ S=65

WN 50(B)-100 RJ S=65

WN 80-25 RF RF Sch40S80

WN 200(B)-63 RF S=4.

WN 80-300 RFRFS=600-150 SFM≥6.0RFRS=1

WN 200(B)-63 RF S=6pampF50rfmb=30 ã

PL300B-16RF2aSf1

WN 900(B)-40 FM S=125sc

WN 200-16 RF/u00/4098 C=13/140-1058.1 C=26.

SO 400-150RF SCH30 RF1