GB/T 12459  弯头 DN 100-Sch3090EL0 RF

DN 100-Sch30 90EL0 RF

pl150(b)-16 rf b1=16800-S

WN600-150 RF SCH80S 235.6f�¬h4080mSFo

PL 50(B)-16 RF=146¶-1 S

LWN 50-150 RF Sch40SE3D

wn25-150rf-sch80s45ined=435 B=3CH1600

BL 600-300 RF Sch80sf30 RF,S=22ch0

wn150-16RfRF6 RF

WN500-40GfF rf FF700-0