HG/T 20592  法兰盖 BL 600-10 RFFK00 RF Sch60@RF@4 Rch44400pam0@RF0 FF S RF RaRF5H

BL600-10 RFFK00 RF Sch60@RF@4 Rch44400pam0@RF0 FF S RF RaRF5H

HG/T20592-2009 WN40(B)-63 M

LWN150-2500 RJ40/5chch40m025-

JWN 40×50-300 RF Sch40

BL 65-16 RF-16 rfh600/6RF

wn200-150RF C0R/p /70-165

WN 2"-150 LFM Sch40

bpl300(b)-10t85Â5-300rf2/-

W