GB/T 12459  同心异径管 DN 125×80-Ⅱ-Sch40SRC-0.6j

DN 125×80-Ⅱ-Sch40S RC-0.6j

wn200-16rf20615F1.0

3 M350-1.60(b)-20=4 S=

SO50-1500RJ SH/FRF B=38.14FFELELR=/u0090EL10

BL300-150 RF=-295R61lwnSch40�

LWN 80-300 FM Sch160

WN250-100 FM12s(b)403hg00C900R s/e2u00b44

WN100(B)-25RJ.6c4r12.5.009fF

47023 c