GB/T 12459  弯头 DN 100-1090ESR56-=5=105=2=19/ S=1

DN 100-10 90ESR56-=5=105=2=19/ S=1

WN400-1500RJ=3d=775 cin0 rf s=200/S40 RF S-1.6 7

PL600(B)-16G=910-1.0/7)HG20-

so20b-16fm500-2580fB6m652011650Sf

WN 65-300 M2 S=8RF

DN 125-Ⅱ-Sch10S 90EL

47023 fm450-1.6 ãƒå½ã‚â´=48

PL 80(B)-10 RF160H-

so10