GB/T 12459  弯头 DN 25-Ⅱ-490ES��F-150 RF Sch80ELm

DN 25-Ⅱ-4 90ES��F-150 RF Sch80ELm

BL600 -150 RF

bl25-16 RF

PL150(B)-10RF b=3 BB=91

WN200-150 RF S=12.5

DN80/PN10/11B S=3

PL350(B)-10 M

PL600-10RF D=895 K= B1=724 C=50 n=24

SO250B-10T

WN150-150 RF S=7@RF@0 FFSch80S=1.6 δ=50 RFrf sS=12.5 &am