HG/T 20615  法兰盖 BL 300-900 RJ=1Sch

BL300-900Rj=1Sch

PL50(B)-10 RF B=60.3120 RFch46-22)-16 r9040=3200

wn100-63rf s=0-4.

BL 150-900 RJ0´1=260f0rf0RF D=940 K=900.

WN 20-300 RF S=5.56 B=15SO320198h40650RFb=6803S=8R1536=34/B)-16F

BL 40-150 RF

BL 150-300 RJ.40 RF S=42.

WN50-16RF

WN15(A)-16