HG/T 20592  法兰 SW 250(B)-10 RFF6R600F A=636 S=M

SW 250(B)-10 RFF6R600F A=636 S=M

WN25(B)-25 FM S=≥6/40SF S/ hg-30 F8 P00-p6 rf-4-16R70200A=2-20

wn250(B)-10m

WN40(B)-100RF400(b)-15

WN150(A)-16 RF S=7-165-100/RF B=98.30.5 K=RFd=2784

LWN50-300 RF/fo/5.

BL200-1500 MFFMrf

法兰盖 BL65-150 FFF=/

B