GB/T 12459  弯头 DN 250-Ⅱ-Sch40S90E3D

DN 250-Ⅱ-Sch40S 90E3D

SO 25-150 RFRF B=5

耳座 A4

BL 450(B)-16 RF Sch80H805J000

BL32(B)-63 M STJ00 RF S1rfS@4csch80rfh4

wn25-150 rf sch8-40

WN350(B)-150RF150(BF21F5

WN400-25 RF Sch160mm

BL50B-40RJ.5

BWN 1200-300RF B=11780S44F0 RF RF2"-150 RF