NB/T 47065.4  支座 A0 RF Sch40f.70u1

DN 800-2 90EL14 A0 RF Sch40f.70u1

47021 M800-0.6/50B

WN 25(A)-63 RF S=3.35

法 兰 PL150(B)-25RFr1FFS

法兰 LWN 250-150 RFfm1100-2.5

WN 50-150 RF Sch40S5/1u0/304h80S

wn 200-10 RF S=16

NB/T47021 FM600-1.0/

HP-210F(bs1RF6RF2RFor/6 δf

BL125(B)-63RFC