HG/T 20592  法兰盖 BL 50(B)-2.5 RF)-RF Sch32-RF�SmpRF@�500-1.0RF SchXXSeS-RFWN0@Rm RF�0

BL50(B)-2.5RF)-RF Sch32-RF�SmpRF@�500-1.0RF SchXXSeS-RFWN0@Rm RF�0

WN 2"-2500 RF S=11.07

lp-2-1/orumSch50 RF Scampa

PL 200(B)-16 RF

DN150-PN100 BL T Ⅱ

WN 900(B)-10 RF S=10

DN50-PN100 BL RJ

WN25(B)-1500RF5-69RF6093h5

LWN 25-150 RF

SO200-1