GB/T 12459  弯头 DN 65-Ⅱ-5180EL.5800-1.

DN 65-Ⅱ-5 180EL.5800-1.

wn 100-150 RF6 S 7.11 h

BL80-150 FF C=6 nF5@=)F S

3 M 1100-2.5 δ0=12

BL 150-25 RF0-3006 RF-1h40

47023 RF700-1.6/pubh103Sb=/

PL800(B)-10RF.5150 خ´2010ffm80-

BL40-150RF HGSh/40RF2150161.0 /

47023 RF700-2.5 50-120080sH4

wn25