GB/T 12459  异径三通 DN 700×700×15-Sch40TR-16

DN 15×15×700-Sch40 TR-16

WN450(B)-16 RF S=14

pl500(b)-25ff0(bc�

WN 50-40RFcs=1ampampm100MMMF

WN 25(B)-25 RF S=4

BL 400-10 RF

WN80-300 RF Sch40 S=4

WN 50(A)-16 RF ScH40S

WN 1"-300 ST Sch40S=10505F

WN50(B)-25RF S=1tHT±ذ²â€�f9//Fc3/F