GB/T 12459  同心异径管 DN 300×300-Ⅱ-8RC

DN 300×300-Ⅱ-8 RC

WN50(B)-2500RF0-1.6rf0

WN60-300 RF

WN 100-300 RF Sch80S0�X@w5@RFSc4a0RJ5-FS 80 M S S0592-R9eS-

47023 fm500-1.0/35-100 h=40 δ=55 h=132

47023 fm1000-2.5/

PL 300-6 RF-10 RFFch40-S

SO 15B-300 RFСFH87F4L

so60-40g-M@4 RchF S r