HG/T 20592  法兰 PL 450-16 RF sch803.3 D=86

pl450-16rf sch803.3 D=86

SO 65-300 G0rInvokerS50 FFRH7N6

WN 36"-150 RF Sch10Sn300-150rf s=4FAs

SO100-10 MFMSch1-40RJ(B)-16 R

WN25(B)-16 RF S=3.5mp

WN100-150 RF sch40s-25rf /data

WN50-160RFch160 SRF15(B)-16R/F

WN100-25RF S=4(B)-16 RF

PL80(B)-63 M