HG/T 20592  法兰 PL 20(B)-16 FF0S@RF S=0=14 Ⅱ b=6RJ4-1

WN 100(B)-16 RF S=s=4

PL 20(B)-16 FF0S@RF S=0=14 Ⅱ b=6RJ4-1

WN 80(B)-16 FF S=4.5=61

WN 250-600 RF S

WN100-150 Ff SCH40S 9020�

WN 80-150 RF Sch10SF8-LM S.5FBFF´-Sch60rf s0.516 RF

WN40(B)-63fM0-160c3/u0 1h=159/7305

SO 10"-150 RF

pl600b-40r