GB/T 12459  弯头 DN 80-5.590ES

DN 80-Ⅰ-5.5 90ES

PL 500(A)-6 RF-1.h40

WN600-600 RJ S=32

NB/T47065.3 C140/u

pL150(B)-16 RF-1-000-150sc-.669F RF0(B0.6FFS60sc

wn350-16rfs=60/98-pa RF0.6 Î=130mpa

PL 200(B)-16 RF

WN 25(B)-25 RF S=3

WN65-40G00-1.6=F d6 C=2�65=60106Fh400t20592m00

B W