HG/T 20592  法兰盖 BL 250(B)-10 RF B/-0.-SO80-1

BL250(B)-10RF B/-0.-SO80-1

WN 150-300 RF Sch40S0SM00A Sch10SFd2=1

20615WN350a-600RF8mstm b=0F Rw

SO 600-150 RF2SrfFh6F636 Sc65(B)00-s/@WN100(B)-16

LWN25-300RF

WN 3"-300 RF S=S=4.5

20592wn40(b)-25rfs=3

WN300(B)-10FM/3440Srf/55ã0f10539S

bl150(b)-