GB/T 12459  异径三通 DN 1200×1200×250-Sch80TR

DN 250×250×1200-Sch80 TR

WN400(B)-16RFS=h40R/pampamp(B)-16

BL400-16 RF,20592FFh80

DN600-PN10 PL RF Ⅱch4040RF1.0540-1.0/u-F02RF4.

BL 350-16 RF0-150

WN25-300 RF S63 RFHG/ S=6

WN 65(B)-25 M S=6

BL250-6FM(B)r50-fS=2.ch800B=0S

BL65-160FF100(B)-1

lwn 1