GB/T 12459  弯头 DN 200-Sch40S90ELf0-1

DN 200-Sch40S 90ELf0-1

WN350-150 RF S=19.05

WN 400B-16 RF S=3.5chFr��orF/2@0O2m RFot3SFS1@40P-1-3�

SO 1/2"-150 RF

DN 100-Ⅱ-2.77 180EL

LWN 500-300 RF Sch160

SO 8"-150 RF

WN 3/4"-300 RF Sch40

so20-6ffampampam6 RFRF0

SO 3/4"-