GB/T 12459  同心异径管 DN 50×40-4RC

DN 50×40-4 RC

BL40(B)-25 RF1 R

47023 fm650-1.6/S.25R-16 RF2w84h80s80s80s0S.251

DN 50×40-4 RE

WN 1600(B)-16 RF Sch40S

BL600(B)-25 RF0FHG/T20590-0.

AXA-3-26—&a

1 RF 500-1.6 δs=4

WN 25-600 RF S=1280-

SO300B-40M7150RF6(48S40ShS=23.810r0 RF SCH4Sch40