GB/T 12459  弯头 DN 80-Sch40S90EL16r

DN 80-Sch40S 90EL16r

WN 200(B)-63 RF

3 FM 600-4.S=3 b1=2

47021 rf 800-0.6H14/5RFvoke00 RF/u00

47023 m400-4.0/ch8050RF Sch40S25

47065.3 A1000B-10RF=726

5 FF 1750-1.620.Ml4Fr00160l25(4501I.Ml4F5-150rfF-16 FM

PL 500(B)-10 RF

WN100-150 RF Sch120

B WN 70