HG/T 20592  法兰盖 BL 150-6 RF-0RF 2件566 B=6RF S=≥=30 B

BL 150-6 RF-0RF 2件566 B=6RF S=≥=30 B

SO 400(B)-10 FF000000ГҺ/f5RF20-15O2m.4

SO 8"-150 RF5В 500-s/@A 100

WN150B-25 FM

DN 300-Ⅱ-4 TS

SW 15-150 RF52.r010h41-10 C=16 Sc0005/Â

DN100-PN25 PL RF I

LWN 40-150 RF

3 RF 1100-1.6 δ0=8

WN80(B)-16