GB/T 12459  弯头 DN 150-Ⅱ-890ES3581e000000025a6 ãƒs=6

DN 150-Ⅱ-8 90ES3581e000000025a6 ãƒs=6

pl250(a)-6Rf/)-16 RF10r

LWN50-1500 RJ B=46.1 H3 unde/2CS-100rj0sr

WN50b-10 RFd=Fch8گ�

PL 350(B)-10RFcSM

TPB-20gT 26304086F

JWN 150×200(B)-16 RF S=3.2

pl900(b)-2.5rf5 S=7F67/u00c3/0srf30480s.5.FFsr255

pl25