NB/T 47021  法兰 T 600-1.0pampampf/l80s

47021 T600-1.0pampampf/l80s

WN 25(B)-25 RF S=4€š

SO 300-150 RF b1f h5564o2RF/30

1 RF 600-1.0

1 RF 700-0.25 δs=5

SW 25-16 RFB=4È┬¼�

WN 40(B)-16 RF Sch4000 δn

PL300(B)-10 RF=4R

PL100B-6 RF=150rf-10RF/6M

PL50-16RF B=500-4CH�°swn450400Fmpam