NB/T 47065.1  支座 A 7704

2 A7704

BL 150(B)-10 FF

BL 6"-150 RF

SP-6420

BII 37589

1 FM 550-1.6 δs=65

47023 m500-10)=2-0/F=80eqid=afb3

PL 40(B)-16 RF

DN800-PN10 BL RF Ⅱ

BI 5192B)-10 FF=5776516 RF5@RF S00RFSfA-Mfs2@RF@4RF SF6 δs=6=110F@47RF42233Sch22012N500(AR5S=-25RF6