GB/T 12459  弯头 DN 300-890EL.01

DN 300-8 90EL.01

PL25B-16RF914.4RFSCH16060=100F S

BL 150-2500 RJ-10rfB12.7

1 RF 500-1.0 δs=5/MSc8

PL32-16RF0 B-150 RF

pl10-25ffFf900150 RF Sch40.6/0-0.64FFÃ2-1M500-1.6F040(B.6R00-1RF040(Bff

2 CM 3000-0.620δ1=8

BL150-150 RF L=3/4&;amp3

lwn25-900rjb