HG/T 20592  法兰盖 BL 25-16 RF

bl25-16RF

PJ/SE 600(B)-16 RF S=5.5

WN50(B)-25RF S=5Frff16056-RF/data

WN 20-900 RJ S

WN 20(B)-40 RF212000RFb)-25L100-

WN 450(B)-40 RF S=120-

SO20B-16M00 LG Sch10S450-11092/

pl15b-10 rf=1SRF/c6/uf RF-2.RF/6&=6Б∙≤п©B20-S

IF400-300RF960.6/-64 RJR