GB/T 12459  等径三通 DN 900-Sch10STS δ=100 RF���40H@R

DN 900-Sch10S TS δ=100 RF���40H@R

WN 50-150 RFn=78@w5@RFSc1=0R5WN1-800-5

47021 M 400-1.6/

wn80-300rf16MnIIF4

wn150-40rjtmlsRF2

SO 40(B)-10 FF

PL800-2.5rfFM Sch45F Sch4.5 Sch

A 2600/uRFRF70--10 FFKRFJScF&@ذ؟ز� δs=18504

SO 150-150 RF

SOP F