GB/T 12459  弯头 DN 65-Sch40S90ESDfmSC

DN 65-Sch40S 90ESDfmSC

BI 75872

BI 13971

WN 150-300 RF S=23

47065.3 B9648

WN50-150 RF Sch2953

WN18"-1500 RF Sch100MSSff40b150(B)5/m-RF=50 H=1

BI 2904

WN 400(B)-16 RF S=855 K=565 C=30 L=27 n=200=265RF15/F0000

LWN 25-150 RF H=2257h120-300rf16 RFF