HG/T 20592  法兰盖 BL 65(B)-6 RF S=3.5S=7.

bl65(b)-6rf S=3.5S=7.

SO 200(B)-16 RF605RF2 RJ

SO65-150 RF SCH10S40

BL 450-6 RFh40RF63RJ S2 FM1000-1.

HP-5 DN=5000 S=5.54B)-16

wn250-150 RF05rfJs-=70 H=10000

BL15-150RFCH804 Y=625

BL 50-150 RF rf mF11620592m1

WN15(B)-40 TG S=3=150F406F

wn50(a)-16rfs=