HG/T 20615  法兰盖 BL 150-900 RJ0´1=260f0rf0RF D=940 K=900.

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)-16RFS=9RF S=3)-16 RF S=3)-1

TH20-150 RFK=147 NA=91 AA=76 H1=13 f1=

WN400(B)-150 RF=6f