HG/T 20592  法兰盖 BL 15-63 Gf0F R A1=F RF5@RF@4RF@4 Rc

BL15-63Gf0F R A1=F RF5@RF@4RF@4 Rc

WN 200-150 RF Sch80S59 b=145RF-0am&32Bh

NB/T47065.2 C2-800-10 DN=1200

WN 18"-150 RJ Sch40SRFC

WN 80(B)-25 T30-3/3(B)F

wn450(a)-600rf a=42.FM-2WN 800(B)-10 RF S=10D=215

WN40-16FM4-60

2 FF 1000-15 K=faRF(A74Ra0

h