GB/T 12459  弯头 DN 700-Sch40S45EL2/u00b061M6RF450rf/f

DN 700-Sch40S 45EL2/u00b061M6RF450rf/f

WN15-900 RF S=B=76 S=16 f10-

PL 250-16 rf

PL80-6FF C=16 b=3/ampch80F/-0.6/9

WN 15-16 RFSch400

BL 200(B)-16 RF12

LWN1"-150 RF Sch40S H=168 B=25

TPB-2A0(b) δ =1050 RF=219

bl20b-63rf6/F5)5

21520PL450(B)-1