HG/T 20592  法兰 SO 500-16 RF/550FMF50 R0RFamf b=5 sch40 h=10WN2.2mf

WN 40-10 RF0=.6F50G-30 B=1466

SO 500-16 RF/550FMF50 R0RFamf b=5 sch40 h=10WN2.2mf

WN80-300 FM ScSch4023 rf0=30F=51mpamp.1.RïRF R

pl150-16rfRF ASME17504=400M ,HGT2060F R010ScSiWlJDC40S8

B WN 800-150 RF Sch80S0B-25RF S=1s4/00-1

HP-2 Ų°Āµ50 RF S=12