HG/T 20592  法兰盖 BL 450-10 RF2009 R0 SM0RF800-s/

BL400(b)-25RF14H

BL450-10RF2009 R0 SM0RF800-s/

WN 40(B)-16 RF

WN10B-10RF0-1.0/

PL50(B)-16 RF 400 4.6/116-150 R0.6 /u0J S/330FR

WN 3 1/2"-150 RF Sch40S

A 2500F0(B)-150 R

WN500-16RFS=1000/ S0

WN 200(B)-100 RF Sch40S0-10rf-

WN500-150 RF schstd/RF0