GB/T 12459  弯头 DN 100-Ⅱ-690ELh402.5 RF Sch404/=SCmpam

DN 100-Ⅱ-6 90ELh402.5 RF Sch404/=SCmpam

BI10003RFker/31.7 S=²п h=1

DN300-PN100 BL RF Ⅱ

1 FF 800-0.25 δs=8FM1/69 f4192-2009F2=26SF R

47065.2 A44/70-16540.25

SO50-900 G8 H592-2

PL200(A)-25 RF/ N= S=5

PL80(b)-6FFRSFh600-3RFB)-6R

bl 400(B)-16M

2 M