GB/T 12459  弯头 DN 25-Ⅱ-4.590EL RJ2ampampampampam

DN 25-Ⅱ-4.5 90EL RJ2ampampampampam

SO200(B)-16 RF b=4R�

WN350-150 RF Sch40

wn600-600FMf3FF/0s40S.0vokFe

wn20-40rfrf81214=

WN 40(A)-63 RF S=3.35

DN 1100×15-Sch20 RCFF D=490 C

SO 100-25 RF7023 RF10/.0/54-115

SOP FF 5K 20A09/30/70-1c3/u00

耳座 B3