GB/T 12459  翻边短节 DN 1500-Sch60LJSm921RF40��040-105

DN 1500-Sch60 LJSm921RF40��040-105

PL50(B)-16 RFHFFh40FMF SCF0ssch40sRJ

BL450(B)-16 RF5S0/-150r

WN200(B)-16 M S=12.5

PL300(B)-16RFrf 80-.0RF RF=

wn500- 25 rf5@lw154 b=128 s.3F

3 RF 1400-0.6ch3/0h0erh30

WN40(B)-16 RF S=RcSCH40

pl 500(b)-40 rf/m4.0