GB/T 12459  同心异径管 DN 40×20-7.14RC

DN 40×20-7.14 RC

LWN 100-300 RF B=13.49

PL300(B)-16 RF 0.60 FFRFN/u00c3/u00a3

WN150-600RFSchF 25x-���81.0RF- rf d4/invo-2F)S2

PL40B)-10 RF/ Ra�ampSc

BL 40-1500 RF580200m8.&0

BL 200-150 RFs5 RJcFB-

LWN40-150 RF sch40h40S6

PL 65(B)-16 RF

BL25-