GB/T 12459  弯头 DN 80-490E3D

DN 80-4 90E3D

WN100-150RF

SO 100(B)-16 RF b=4

WN50-600 RJ Sch400.25mlF Sc�

47023 fm700-1.0 î´0=12

WN 50-63 RFδsRF/W25m

WN 600-150 RF S=12

SO 100(B)-16 RF

PL250-600rf sch80ss�ข�

BL 65-16 RFB) AA S=12ch80FSCH6tF0@R D=20 B=190 d=21 S=10-1�п�