GB/T 12459  异径三通 DN 1150×1150×200-Sch30TR

DN 200×200×1150-Sch30 TR

pl40(b)-25 fmni4-00(B50

WN100-25M1

WN450-150 RF S=14.25F0009 sc6/4-150 RFch160

wn200-16Rf-hFRFF10F

PL 40-25RF0 R/)-130=206r.5Fb1=G/9R

WN 25(B)-16 RF6/50A32/s=8.8ch80SF0-0.F S=5F S=8362

wn200b-40 fm6150

WN500-300RF s(B)-10