HG/T 20592  法兰盖 BL 20(B)-63 RF@R RF=12 RFFM

BL 3"-150 RF

BL 20(B)-63 RF@R RF=12 RFFM

PL125-6RF

LWN 25-300 RF H=160

PJ/SE 200(B)-25 RF Sch40S

WN100-16RFch10sP�aa@J/Fc2@Rt��RJ/Fc2@R RF=12 RFFM

WN 450(B)-25 RF S=4

NB=T47023 FM700-4.

PL200(B)-10RF

SO 400(B)-16 RF10Sta5S RC@FF@F20615 w0