GB/T 12459  同心异径管 DN 1150×15-Sch10SRCp0rf

DN 1150×15-Sch10S RCp0rf

20592 LWN40-150 RFSc0 d smf RF B

法兰WN40(B)-100 M

WN15B-100M S=4.2c

WN 150(B)-63 M S=5

NB/T47021 FM400-1.0 �

SO15B-10TF(160-300.10

wn65-150 ff sch4.F&@tTf�SB)-160880s

SO15B-16RF59200chF&@tTf�SB)-160880s

WN200(B)-25