HG/T 20592  法兰 IF 10-6 FFpampa1F=58

IF 10-6 FFpampa1F=58

法兰wn 300-150 rf s/16 RD=243δ=8152-1

WN 500-150 RF S=8108

WN15(A)-16 FMRFRF

BL125(B)-63fM92/16h40SS=0A=f

PL 32(B)-10 RF=2 A/ R/=10 RF5/1)-40h40=35F1400 TR �c.64B06

WN 200-150 RF Sch80-2009BL200-40M67501000-65 FM

WN15(A)-1