GB/T 12459  偏心异径管 DN 450×10-Sch20RE�¬âR1

DN 450×10-Sch20 RE�¬âR1

pl125(B)-16RF40S

bl80(A)-16rfs/@BI 1=1092-20 δs=1/ampampF6 b

WN 500(B)-300 RF

LWN3"-300RF B=76.2 S=2

pl10-40 rf5RFF16 RF16R0691h6025(.0)5nr40s

NB/T47021 FM900-1.005Sch40S-f6hg- п0RF RF800-6.4

SO200-40T62

47023 fm12