GB/T 12459  偏心异径管 DN 1300×1200-8RE

DN 1300×1200-8 RE

DN 300-Ⅱ-Sch80S 90EL

WN250(B)-25 RF

BL50-100 RF8 S0-10/fo RF

WN80-16rfs16

PL 80(B)-16 RFinvo@40h40

DN500-PN10 PL RF Ⅱ07-2.H=114le/(5/3 S=3160 H=168j)-100RF S

PL 200(B)-16 FM

WN 500(B)-16 RF

WN300(B)-16 RF S=600FFM-16@470╨»¦