HG/T 20592  法兰 PL 125-6 M54 RF D=143 B1=63FRF5.5-20

pl125-6m54 RF D=143 B1=63FRF5.5-20

PL 300(B)-10 RFrfRF Sf�20/f0160H40SR5040 R0615 wn400-600a0425M0M0Pc

SO 25-300 RFH40S.804FS1 r4.0f-1.0am RF

WN125(B)-100FM S=8b=4 f1=3-16R

DN50-PN16 PL/W-B RF Ⅱ36200-1.

PL20(A)-6 RF b=300-0fwih400 RF=6FB8/16

pl25