GB/T 12459  弯头 DN 20-5180ELc RF Sch1hSTDRF040 Sch

DN 20-5 180ELc RF Sch1hSTDRF040 Sch

PL 400(B)-16 RF

JWN 65×100(B)-16 RF S=3

DN1000-PN10 PL RF Ⅱ C=69

DN1000-PN16 PL RF Ⅱ

DN1000-PN16 PL RF Ⅱ C=89

PL400(B)-10 RF50rf50B=4pampa

BL250B-150G sch8 S=8R0 RF

JWN 65×100(B)-16 RF S=3.2

DN700/PN10/01A