GB/T 12459  弯头 DN 25-Ⅱ-590ESqu

DN 25-Ⅱ-5 90ESqu

2 B3 DN=1400 δn=1

WN 24"-150 RF S=574

PL 400(A)-16 FF25 RFF1

WN200(B)-25 FMspam

WN20"-150 RF Sch10S2-h60F Sch80SRF1.

PL400-40FM(a)-10F

47065.4 B2-4gM.0R2.5J0/25.0�1

PL 50(B)-6 RF

PL150(B)-16FM6ЋбFS-1408-15.64/-6/»Â