GB/T 12459  等径四通 DN 200-Sch40SCRS0 δ=106 H=

DN 200-Sch40S CRS0 δ=106 H=

wn150(b)-16rf b=4h

so80-150rf00rfsch80s204(b)-15RF10

WN500-300 RF Sch0 h=120909an

SO500(B)-16RF==360T2fnbh2.5/fRf4fs-

WN25-150RFSCH=50(b)c5(F00-1

LWN25-150 FFm90.5 H=2536

WN50-300 RF�

WN 25(B)-25 RF Sch40S

PL25-10RF7208