GB/T 12459  弯头 DN 125-Ⅱ-590ES0-Ⅱ-8 TRch16300RJ559 s=8F

SO20(B)-16 RF

DN 125-Ⅱ-5 90ES0-Ⅱ-8 TRch16300RJ559 s=8F

DN 300×150-Ⅱ-Sch80 RC

法兰LWN 20-150 RF H=179 B=18.5

DN250-PN16 WN RF Ⅱ S=9.5

bi 700 h=30025f2022SCH

PL450(B)-6 fF-909RF40Sch-h40

AXA-4 2h1=7

wn50B-63fm/-S=12

pl80(B)-10RFPL25(B/ S¢B=