GB/T 12459  同心异径管 DN 200×150-Ⅱ-5RC-

DN 200×150-Ⅱ-5 RC-

WN 40-150 RF Sch80=3.0

47021 m400-1.6/36 δS=3.6510 R

Pl150-10RFR5�00M70BBupFSC

BL 250-16 RF

WN 2"-150 RF sc00-6020615F RF

WN10"-150 RF SCH

LWN 25-150 RF H=193

WN15-300 M B=12J Sch40B)

bl65-63rfNION ALL SEF 13