弯头 DN 20-Sch10S45EL16 FM016925Fmpampa/

DN 20-Sch10S 45EL16 FM016925Fmpampa/

JPL 150×200(B)-16 RFsc

So125B-16RF221S=6rf

PL700(B)-2.5 RF S

20592wn450-40rf0-

BL65-600FM00-0.65rf

HG/T20615-2009 WN200-300 M

PL15(B)-16 RF0

法兰WN100(B)-16 RF S=6 HGT 20592-2009

SO 200-