HG/T 20592  法兰 SO 100-16 G

SO 100(A)-16 G

4 B4

PL 300(B)-16 RF2846

WN 300-150 RF Sch40S

WN 4"-150 RF Sch6666

PL 300(B)-16 RF3074

PL125(B)-16 RF

WN 50(B)-16 RF4033

WN80(B)-16 RF3418

WN 50(B)-100 FM Sch40S(B)-63 FM��@RF@4 R6 RF Ah6610FC3f0Sc50-1.0/RF SC848�77.5 RJ R5 R