GB/T 12459  同心异径管 DN 125×80-Ⅱ-Sch40SRC

DN 125×80-Ⅱ-Sch40S RC

SO300-25fm(B)R128

法兰 LWN25-300RF L=19rf1b-F-)-16 rf5a

WN200-1500 RF Sch120-40RFd=150 c=19.1‚

BL 150(B)-10 RFchs rFr

pl25-6fmch40f schch20t206100-70cf/

PL 800(B)-2.5 RF

BL100-100 M C=HG/T205FFc416 B=5800/120-21B)-

S31603