GB/T 12459  弯头 DN 750-Ⅱ-345E3D

DN 750-Ⅱ-3 45E3D

WN 15-1500 RJ C=4S n/u00c6/data/src-R

WN300(B)-40RFS=12

PL 200-10 FF B=120

SO80-300 FM0-954.55f

bl 500-16 RFM300=

3 FM 800-1.0 δ0=6

pl150-16ff aa=172

wn50(b)-16 rf sch Sch

20615 LWN400-600FM3 r=1009 bl 25-150 rf34.96RF16@40S=5 H1