GB/T 12459   DN 150-Sch4045ESh4

DN 150-Sch40 45ESh4

BI 280h46.-0-1

WN450-25RFm120040@mpampampch40F@0rf62SFRJ

WN40(B)-40RF S=4mmF1160

c-BL500-10mamp±آSF140@

WN65(A)-2500RF- Sch40LB)5F&@-Rั

BL 80-150 RFp16ImpcM sn280Rf@40@R@c459FSc1�F1@fwnR-.5 R

WN350-1500RJ Sch40c

BL500B-16