弯头 DN 32-490EL

DN 32-I-4 90EL

wn20(a)-63rf5/1./fo6 rfdr.025RB)-

bâ… 1200-f/@47021 C-RF1000-0.6rf d=180 b= d=210/=

wn20(b)-16 mf7=6s4/6RF'/','/5-1.

PL400(B)-10fm3/u00a3c50

wn20-150rf sch80s1

bl100-600 m755 b1

法兰LWN65-1500 RJ

20592 WN