NB/T 47065.1  支座 BⅠ 71692

BI 71692

WN150-150 RF SCH80Sa

HG/T20615 WN100B-150 RF SCH80m

47023 FM500-2.5 δ=8 H

DN250-PN40 WN RF Ⅱ S=5

SW40-900RF Sch

SP-5971

WN15(B)-160RF4.0FF S

BI 77620

WN50-600RF Asme B/10 WN RF �RF/40S.@R RB)-16 RF) S=3FM=460f=41 H=)-150 rFd=1259ni275