GB/T 12459  同心异径管 DN 200×25-Sch10SRC

DN 200×25-Sch10S RC

3 RF 550-2.543 RF S=10ch)-25fmu

WN 400-150 RF S=12.5.6 ÃFN5/59B5150f0TSìSCH)0

BL 1/2"-600 RFa/2

WN 20-300 RF/wso

PL400(A)-16RF01r��4FFm02001TS1ã¨3 RF1..ha@6 mRF0X@f

PL350B-16RF4160/h

so 80-16 RF0c00 RFp(B

WN40-63 RJ