HG/T 20592  法兰 PL 25(B)-10 TG0-4.80S6.484R

PL25(B)-10 TG0-4.80S6.484R

PL500-2.5RFsch4 B/00500RJc105fhn4

PL 500(B)-6 RF

SO 2"-300 RF

SO 150(B)-16 RF´=u0083F

WN 20"-150 RF Sch10S f=1.8

SO 250-16 RF202.51000-11.0/70-

SO150(A)-25 RF b=0f-100b3RF Sch80Sampampampampa0c6/u0

A WN 38"-