HG/T 20592  法兰 PL 400(B)-16 RF s=468B)-16 R=105 c c1RF1r/0HG▒Б R

pl400(b)-16 rf s=468B)-16 R=105 c c1RF1r/0HG▒Б R

wn125-16rf K=715 n0s=680SO40 YSrce==56 s=RF Sch116 RF5-4

pl20(B)-16 RFCҪb/710S0 T S=)-tr14=-1.6F-

BL100-16 FF D=20Smp88-A d0=M=�=91 a

pl200(b)-25RFÂCH10SF0 R=s=35 A=736RF

pl100(b)-16 rf b=4F5-00