弯头 DN 500-1690EL6 RFS=19F δ0=10 m2 C=16H4==211 C=

DN 500-16 90EL6 RFS=19F δ0=10 m2 C=16H4==211 C=

WN100-300RF 40S d=410 FF RF S

BL80(B)-100 RJ16rf0

so150(b)-16g/

wn65-300 tsch40t0(39

WN200-16RF10s RF=5/592-2009t.6=18jRF10fr34

PL150(a)-16 rf720165Sch40F550fm600-1-20

WN350A-16RF0pl150(b)s Sch40S0-

P