GB/T 12459  弯头 DN 200-Ⅱ-490ES

DN 200-Ⅱ-4 90ES

DN 200-Ⅱ-8 90ES

WN 25(A)-16 RF S

SOH RF 16K A 25A

JWN 50×80-150 RF Sch10S

DN 50-Ⅱ-3 45EL

JWN 50×80-300 G Sch40S

PL65(B)-10FFL=

BL250-100 RF S/pa

WN 350(B)-16 RF S=3=12=120=12�600В Шў-150RF S000-1-10R3RF06 RF S=2.9RF S=8�