GB/T 12459  弯头 DN 150-Ⅱ-1090ESgRF021 Rm/1.0/70-F

DN 150-Ⅱ-10 90ESgRF021 Rm/1.0/70-F

BL400-6 RF=

SO 32(B)-10FMaw/l=16�å0

BL10-10 FF00-10060-1 Sch1p2500RF

3 FM 500-1.0 δ0=10

LWN150-600RF5

SO 20(B)-10 M

PL 250(B)-25 RF RF Sch10S

WN80-300RF1.0/

BL25-1500 G00 RF b=4252 hg/L100-1880RFF05F2B3M Sch10