GB/T 12459  同心异径管 DN 200×150-Ⅱ-4RC60.6010 AA=82

DN 200×150-Ⅱ-4 RC60.6010 AA=82

B WN26"-600 RF B=

SO 40-150 RFSn0sS16F S4fm s=28S50

WN50A-16RFrf00fF S/sch440A40c3/u9f s=16 h1=18F-

LWN100-300 RF H=

WN 80-16 RF0G.5RF600-150 R SCH)310FRF020Rl20 RF8f b6RfL16-1Rh40 H=400y S-1.ach40.56

20592 BL2