HG/T 20592  法兰 WN 50-25 RF S=34RFch4rf b=1

WN50A-25RF S=34RFch4rf b=1

PL100B)-40 RF4Sch/70-5h80.490SRF Sc.0/64-1

WN15-300RF

WN 40-150 RF SCH40

WN 80-150 RF SCH40

3 RF 1300-1.6RFch80Sch80 RF S(B)-

SO65(B)-25T/R

pl25(b)-10 rf/sta/t60069

SO 15-150 RF Sch40S1.2�šÂ¬Ã-150 RF/006-0.6pδ0=20rum